Gregory Bender

Wiring harnesses for the Moto Guzzi California III

To order, e-mail: greg@thisoldtractor.com

Installation is eased with my instructions for the major electrical components.

Main harness for the California III

Part Number Description Photo Price
MG# 29747150

Main harness for the California III (Double contact breaker [DR], Magura handlebar switches [M])

The California III came equipped with variations in the charging system:

  • Saprisa charging system. Voltage regulator was mounted behind the right side cover.
  • Ducati charging system. Voltage regulator was mounted in front of the engine, above the alternator.

The California III came equipped with variations in the ignition system:

  • Standard distributor with coils located behind the left side cover.
  • Digiplex electronic ignition with coils under the fuel tank.

Please let me know which variation you may have.

WANTED: I very much want to reproduce this harness for the California III. Should you have this California III harness suitable for duplication, I would like to speak with you. For more information, e-mail: greg@thisoldtractor.com

USD $0.00

How to order

Testimonials and reviews

MG# 29747170

Main harness for the California III (Double contact breaker [DR], CEV handlebar switches [C])

The California III came equipped with variations in the charging system:

  • Saprisa charging system. Voltage regulator was mounted behind the right side cover.
  • Ducati charging system. Voltage regulator was mounted in front of the engine, above the alternator.

The California III came equipped with variations in the ignition system:

  • Standard distributor with coils located behind the left side cover.
  • Digiplex electronic ignition with coils under the fuel tank.

Please let me know which variation you may have.

I duplicated an original main harness. In construction, I use the same gauge of wire, the same colors and tracers (stripes), the same length and sheathing, the same terminals, etc. All terminals are of the double crimp, strain relief variety.

  • Note: Main harnesses comprise the main - or primary - wiring harness. Each motorcycle also uses ancillary sub-harnesses. The individual sub-harnesses are sold separately.
15 terminal connection to the dash harness.
15 terminal connection to the dash harness.
15 terminal connection to the dash harness.

Direct link to image

6 terminal connection (optional).
6 terminal connection (optional).
6 terminal connection (optional).

Direct link to image

4 terminal connection to the right handlebar switch.
4 terminal connection to the right handlebar switch.
4 terminal connection to the right handlebar switch.

Direct link to image

9 terminal connection to the left handlebar switch.
9 terminal connection to the left handlebar switch.
9 terminal connection to the left handlebar switch.

Direct link to image

Connections to the distributor (optional).
Connections to the distributor (optional).
Connections to the distributor (optional).

Direct link to image

Connections to the side stand switch (optional).
Connections to the side stand switch (optional).
Connections to the side stand switch (optional).

Direct link to image

6 terminal connection to the fuse box.
6 terminal connection to the fuse box.
6 terminal connection to the fuse box.

Direct link to image

6 terminal connection to the tail light harness.
6 terminal connection to the tail light harness.
6 terminal connection to the tail light harness.

Direct link to image

2 terminal connection to the low fuel light (optional).
2 terminal connection to the low fuel light (optional).
2 terminal connection to the low fuel light (optional).

Direct link to image

Connections to the Saprisa voltage regulator.
Connections to the Saprisa voltage regulator.
Connections to the Saprisa voltage regulator.

Direct link to image

4 sockets for three relays and the turn signal flasher.
4 sockets for three relays and the turn signal flasher.
4 sockets for three relays and the turn signal flasher.

Direct link to image

Main harness for the California III (Double contact breaker [DR], CEV handlebar switches [C]).
29747170: Main harness for the California III (Double contact breaker [DR], CEV handlebar switches [C]).
29747170: Main harness for the California III (Double contact breaker [DR], CEV handlebar switches [C]).

Direct link to image

USD $220.00

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MG# 29747171

Main harness for the California III (Digiplex Electronic Ignition [AE])

The California III came equipped with variations in the charging system:

  • Saprisa charging system. Voltage regulator was mounted behind the right side cover.
  • Ducati charging system. Voltage regulator was mounted in front of the engine, above the alternator.

The California III came equipped with variations in the ignition system:

  • Standard distributor with coils located behind the left side cover.
  • Digiplex electronic ignition with coils under the fuel tank.

Please let me know which variation you may have.

I duplicated an original main harness. In construction, I use the same gauge of wire, the same colors and tracers (stripes), the same length and sheathing, the same terminals, etc. All terminals are of the double crimp, strain relief variety.

  • Note: Main harnesses comprise the main - or primary - wiring harness. Each motorcycle also uses ancillary sub-harnesses. The individual sub-harnesses are sold separately.
15 terminal connection to the dash harness.
15 terminal connection to the dash harness.
15 terminal connection to the dash harness.

Direct link to image

6 terminal connection (optional).
6 terminal connection (optional).
6 terminal connection (optional).

Direct link to image

4 terminal connection to the right handlebar switch.
4 terminal connection to the right handlebar switch.
4 terminal connection to the right handlebar switch.

Direct link to image

9 terminal connection to the left handlebar switch.
9 terminal connection to the left handlebar switch.
9 terminal connection to the left handlebar switch.

Direct link to image

Connections to the distributor (optional).
Connections to the distributor (optional).
Connections to the distributor (optional).

Direct link to image

6 terminal connection to the fuse box.
6 terminal connection to the fuse box.
6 terminal connection to the fuse box.

Direct link to image

6 terminal connection to the tail light harness.
6 terminal connection to the tail light harness.
6 terminal connection to the tail light harness.

Direct link to image

2 terminal connection to the low fuel light (optional).
2 terminal connection to the low fuel light (optional).
2 terminal connection to the low fuel light (optional).

Direct link to image

Connections to the Ducati voltage regulator.
Connections to the Ducati voltage regulator.
Connections to the Ducati voltage regulator.

Direct link to image

3 sockets for two relays and the turn signal flasher.
3 sockets for two relays and the turn signal flasher.
3 sockets for two relays and the turn signal flasher.

Direct link to image

Main harness for the California III (Digiplex Electronic Ignition [AE]).
29747171: Main harness for the California III (Digiplex Electronic Ignition [AE]).
29747171: Main harness for the California III (Digiplex Electronic Ignition [AE]).

Direct link to image

USD $220.00

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MG# 29747161

Main harness for the California III (Fuel Injection)

The California III came equipped with variations in the charging system:

  • Saprisa charging system. Voltage regulator was mounted behind the right side cover.
  • Ducati charging system. Voltage regulator was mounted in front of the engine, above the alternator.

The California III came equipped with variations in the ignition system:

  • Standard distributor with coils located behind the left side cover.
  • Digiplex electronic ignition with coils under the fuel tank.

Please let me know which variation you may have.

WANTED: I very much want to reproduce this harness for the California III. Should you have this California III harness suitable for duplication, I would like to speak with you. For more information, e-mail: greg@thisoldtractor.com

USD $0.00

How to order

Testimonials and reviews

Sub-harnesses for the California III

Part Number Description Photo Price
MG# 14715424 (ALT)

Distributor to main harness - left side

Connects the ignition points inside the distributor to the main harness (further connects to the negative terminal on the coil serving the left cylinder). A ring terminal is used for a more secure fitment inside the distributor. The green wire exits the distributor toward the rear of the motorcycle.

Distributor to main harness - left side.
14715424: Distributor to main harness - left side.
14715424: Distributor to main harness - left side.

Direct link to image

USD $2.50

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MG# 14715425 (ALT)

Distributor to main harness - right side

Connects the ignition points inside the distributor to the main harness (further connects to the negative terminal on the coil serving the right cylinder). A ring terminal is used for a more secure fitment inside the distributor. The red wire exits the distributor toward the front of the motorcycle.

Distributor to main harness - right side.
14715425: Distributor to main harness - right side.
14715425: Distributor to main harness - right side.

Direct link to image

USD $2.50

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MG# 29722170

Digiplex ignition - early style with Molex connectors

Wiring to support the Digiplex ignition system. Includes corresponding terminals and connector plugs for the electronic ignition modules and distributor pick-up.

Digiplex ignition - early style with Molex connectors
Digiplex ignition - early style with Molex connectors
Digiplex ignition - early style with Molex connectors

Direct link to image

Digiplex ignition - early style with Molex connectors
Digiplex ignition - early style with Molex connectors
Digiplex ignition - early style with Molex connectors

Direct link to image

Digiplex ignition - early style with Molex connectors
Digiplex ignition - early style with Molex connectors
Digiplex ignition - early style with Molex connectors

Direct link to image

Digiplex ignition - early style with Molex connectors
Digiplex ignition - early style with Molex connectors
Digiplex ignition - early style with Molex connectors

Direct link to image

Digiplex ignition - early style with Molex connectors
29722170: Digiplex ignition - early style with Molex connectors
29722170: Digiplex ignition - early style with Molex connectors

Direct link to image

USD $27.25

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MG# 29722170-LATE

Digiplex ignition - late style with 11-pin flat connector, relay socket, and AMP Superseal connectors

Wiring to support the Digiplex ignition system. Please note, the 11-pin flat connector is no longer available. You will need to reuse your existing connector. If you ship me your original harness, I will be happy to remove the old terminals and fit the new terminals.

Relay socket to power the coils.
Relay socket to power the coils.
Relay socket to power the coils.

Direct link to image

3-pin AMP Superseal connector.
3-pin AMP Superseal connector.
3-pin AMP Superseal connector.

Direct link to image

2-pin connector.
2-pin connector.
2-pin connector.

Direct link to image

2-pin AMP Superseal connector to the left S coil (green wire).
2-pin AMP Superseal connector to the left S coil (green wire).
2-pin AMP Superseal connector to the left S coil (green wire).

Direct link to image

2-pin AMP Superseal connector to the right D coil (yellow/black wire).
2-pin AMP Superseal connector to the right D coil (yellow/black wire).
2-pin AMP Superseal connector to the right D coil (yellow/black wire).

Direct link to image

Digiplex ignition - late style with 11-pin flat connector, relay socket, and AMP Superseal connectors
29722170: Digiplex ignition - late style with 11-pin flat connector, relay socket, and AMP Superseal connectors
29722170: Digiplex ignition - late style with 11-pin flat connector, relay socket, and AMP Superseal connectors

Direct link to image

USD $77.00

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MG# 14748450

Battery cable - positive

Connects the positive terminal on the battery to the starter. Cable is 6 AWG and is 400 mm (~15 34 inch in) in total length. If you require something different, please let me know. Replaces MG# 14748400.

Includes rubber cover for the terminal located at the starter solenoid (MG# 12703000).

Detail of rubber cover for the terminal located at the starter solenoid (MG# 12703000).
Detail of rubber cover for the terminal located at the starter solenoid (MG# 12703000).
Detail of rubber cover for the terminal located at the starter solenoid (MG# 12703000).

Direct link to image

Detail of rubber cover for the terminal located at the starter solenoid (MG# 12703000).
Detail of rubber cover for the terminal located at the starter solenoid (MG# 12703000).
Detail of rubber cover for the terminal located at the starter solenoid (MG# 12703000).

Direct link to image

Battery cable - positive.
14748450: Battery cable - positive.
14748450: Battery cable - positive.

Direct link to image

USD $14.75

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MG# 28747960

Battery cable - negative

Connects the negative terminal on the battery to the grounding point on the frame. Cable is 6 AWG and is 230 mm (~9 inch) in total length. If you require something different, please let me know.

Note: The original negative battery cable was made of a bare, braided material. It was quite flexible. This cable is much stiffer and not nearly as flexible. Please be certain this will work for you and your application.

Battery cable - negative.
28747960: Battery cable - negative.
28747960: Battery cable - negative.

Direct link to image

USD $10.00

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MG# 29746900

Headlight

Connects the main harness to the headlight bulb. 4 terminal plug is left uninstalled so that the wires may be fit through the small opening in the headlight bucket. Once the wires are in place, the plug is installed as follows:

  • Position 1: Yellow
  • Position 2: Brown
  • Position 3: Gray with green tracer
  • Position 4: Black
4 terminal connection to the main harness.
4 terminal connection to the main harness.
4 terminal connection to the main harness.

Direct link to image

Headlight.
29746900: Headlight.
29746900: Headlight.

Direct link to image

USD $11.75

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MG# 30743000

Fuse box

Replacement fuse block with connections to main harness. Fuse block is of good quality. But, it is not original and the mounting holes do not align. It will fit nicely in the available space and you should be able to secure it in place using one of the two original mounting holes.

Fuse box
Fuse box
Fuse box

Direct link to image

Fuse box
Fuse box
Fuse box

Direct link to image

Accepts standard ATO/ATC fuses (not included).
Accepts standard ATO/ATC fuses (not included).
Accepts standard ATO/ATC fuses (not included).

Direct link to image

6 terminal connection to the main harness
6 terminal connection to the main harness
6 terminal connection to the main harness

Direct link to image

Harvey Johnson used the original lower mounting hole on his Mille GT. Then, he used a short piece of aluminum flat stock to mount the fuse block diagonally to the original upper mounting hole as shown in the photos below.

Arrow points to the original hole that was used.
Arrow points to the original hole that was used.

Photo courtesy of Harvey Johnson.

Arrow points to the original hole that was used.

Photo courtesy of Harvey Johnson.

Direct link to image

Fuse block in place using a piece of flat aluminum to secure it in place diagonally.
Fuse block in place using a piece of flat aluminum to secure it in place diagonally.

Photo courtesy of Harvey Johnson.

Fuse block in place using a piece of flat aluminum to secure it in place diagonally.

Photo courtesy of Harvey Johnson.

Direct link to image

Fuse box
30743000: Fuse box
30743000: Fuse box

Direct link to image

USD $33.75

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MG# 23750670

Turn signal replacement wires (series 1).

Replacement wires for the front turn signals. Fits the series 1 turn signals that have a flat/rectangular shape.

California III turn signals with a flat/rectangular shape (not included).
California III turn signals with a flat/rectangular shape (not included).
California III turn signals with a flat/rectangular shape (not included).

Direct link to image

Turn signal replacement wires (series 1).
23750670: Turn signal replacement wires (series 1).
23750670: Turn signal replacement wires (series 1).

Direct link to image

USD $5.00

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MG# 29751660

Turn signal replacement wires (series 2).

Replacement wires for the front turn signals. Fits the series 2 turn signals that have a round/circular shape.

WANTED: I very much want to reproduce this harness for the California III. Should you have this California III harness suitable for duplication, I would like to speak with you. For more information, e-mail: greg@thisoldtractor.com

USD $0.00

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MG# 29747250

Dash (1A - Series 1)

Connects the main harness to the dash.

WANTED: I very much want to reproduce this harness for the California III. Should you have this California III harness suitable for duplication, I would like to speak with you. For more information, e-mail: greg@thisoldtractor.com

The series 1 dash uses this 4-way flasher button (MG# 28745760). Carefully note the connections on the bottom. (not included)
The series 1 dash uses this 4-way flasher button (MG# 28745760). Carefully note the connections on the bottom. (not included)

Photo courtesy of HMB Guzzi.

The series 1 dash uses this 4-way flasher button (MG# 28745760). Carefully note the connections on the bottom. (not included)

Photo courtesy of HMB Guzzi.

Direct link to image

The series 1 dash uses this 4-way flasher button (MG# 28745760). Carefully note the connections on the bottom. (not included)
The series 1 dash uses this 4-way flasher button (MG# 28745760). Carefully note the connections on the bottom. (not included)

Photo courtesy of HMB Guzzi.

The series 1 dash uses this 4-way flasher button (MG# 28745760). Carefully note the connections on the bottom. (not included)

Photo courtesy of HMB Guzzi.

Direct link to image

Applicable to this dash (not included)
Applicable to this dash (not included)
Applicable to this dash (not included)

Direct link to image

USD $0.00

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MG# 29747251

Dash (2A - Series 2)

Connects the main harness to the dash. I have been unable to source a replacement for the plug that connects to the 4-way flasher button. You will need to re-use your existing plug.

The series 2 dash uses this 4-way flasher button (MG# 28745761). Carefully note the connections on the bottom. (not included)
The series 2 dash uses this 4-way flasher button (MG# 28745761). Carefully note the connections on the bottom. (not included)

Photo courtesy of HMB Guzzi.

The series 2 dash uses this 4-way flasher button (MG# 28745761). Carefully note the connections on the bottom. (not included)

Photo courtesy of HMB Guzzi.

Direct link to image

The series 2 dash uses this 4-way flasher button (MG# 28745761). Carefully note the connections on the bottom. (not included)
The series 2 dash uses this 4-way flasher button (MG# 28745761). Carefully note the connections on the bottom. (not included)

Photo courtesy of HMB Guzzi.

The series 2 dash uses this 4-way flasher button (MG# 28745761). Carefully note the connections on the bottom. (not included)

Photo courtesy of HMB Guzzi.

Direct link to image

Applicable to this dash (not included)
Applicable to this dash (not included)
Applicable to this dash (not included)

Direct link to image

2 terminal connection for the front brake light switch.
2 terminal connection for the front brake light switch.
2 terminal connection for the front brake light switch.

Direct link to image

15 terminal connection to the main harness.
15 terminal connection to the main harness.
15 terminal connection to the main harness.

Direct link to image

6 terminal connection to the hazard light switch mounted on the dash.
6 terminal connection to the hazard light switch mounted on the dash.
6 terminal connection to the hazard light switch mounted on the dash.

Direct link to image

4 terminal connection to the headlight sub-harness.
4 terminal connection to the headlight sub-harness.
4 terminal connection to the headlight sub-harness.

Direct link to image

Main harness to dash (2A - Series 2).
29747251: Main harness to dash (2A - Series 2).
29747251: Main harness to dash (2A - Series 2).

Direct link to image

USD $100.00

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MG# 29747252

Dash (C - CEV)

Connects the main harness to the dash.

WANTED: I very much want to reproduce this harness for the California III. Should you have this California III harness suitable for duplication, I would like to speak with you. For more information, e-mail: greg@thisoldtractor.com

USD $0.00

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MG# 29747260

Dash (Fuel Injection)

Connects the main harness to the dash.

WANTED: I very much want to reproduce this harness for the California III. Should you have this California III harness suitable for duplication, I would like to speak with you. For more information, e-mail: greg@thisoldtractor.com

USD $0.00

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MG# 29725860

Wiring for the fuel injection and electronic ignition system (for models equiped with the Weber Marelli P8 ECU)

Connects the Weber Marelli P8 ECU to the timing and rev sensors, fuel injectors, coils, fuel pump, relays, etc.

WANTED: I very much want to reproduce this harness for the California III. Should you have this California III harness suitable for duplication, I would like to speak with you. For more information, e-mail: greg@thisoldtractor.com

USD $0.00

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DASH-GROUND-CALIFORNIA-III

Dash ground interconnect (2A - Series 2)

Interconnects the ground points for the indicator lights in the dash.

Dash ground interconnect (2A - Series 2).
Dash ground interconnect (2A - Series 2).
Dash ground interconnect (2A - Series 2).

Direct link to image

USD $6.00

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MG# 23747310

Tail light

Connects the main harness to the tail light and rear turn signals.

6 terminal connection to the main harness.
6 terminal connection to the main harness.
6 terminal connection to the main harness.

Direct link to image

Tail light
23747310: Tail light
23747310: Tail light

Direct link to image

USD $23.00

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MG# 23738070

Handlebar switch (Series 1 - Magura)

Replacement wiring for the left handlebar switch. Connects the left handlebar switch to the main harness.

9 terminal connection to the main harness.
9 terminal connection to the main harness.
9 terminal connection to the main harness.

Direct link to image

Applicable to this Magura switch (not included).
Applicable to this Magura switch (not included).

Photo courtesy of Teo Lamers.

Applicable to this Magura switch (not included).

Photo courtesy of Teo Lamers.

Direct link to image

Applicable to this Magura switch (not included).
Applicable to this Magura switch (not included).

Photo courtesy of Teo Lamers.

Applicable to this Magura switch (not included).

Photo courtesy of Teo Lamers.

Direct link to image

Handlebar switch (Left - Magura)
23738070: Handlebar switch (Left - Magura)
23738070: Handlebar switch (Left - Magura)

Direct link to image

USD $21.00

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MG# 23750370

Handlebar switch (Series 1 - Magura)

Replacement wiring for the right handlebar switch. Connects the right handlebar switch to the main harness.

9 terminal connection to the main harness.
9 terminal connection to the main harness.
9 terminal connection to the main harness.

Direct link to image

Applicable to this Magura switch (not included).
Applicable to this Magura switch (not included).

Photo courtesy of Teo Lamers.

Applicable to this Magura switch (not included).

Photo courtesy of Teo Lamers.

Direct link to image

Applicable to this Magura switch (not included).
Applicable to this Magura switch (not included).

Photo courtesy of Teo Lamers.

Applicable to this Magura switch (not included).

Photo courtesy of Teo Lamers.

Direct link to image

Handlebar switch (Right - Magura)
23750370: Handlebar switch (Right - Magura)
23750370: Handlebar switch (Right - Magura)

Direct link to image

USD $23.75

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MG# 27738015

Left handlebar switch (Series 2 - CEV)

Replacement wiring for the left handlebar switch (Series 2 - CEV).

Applicable to this CEV switch (not included).
Applicable to this CEV switch (not included).
Applicable to this CEV switch (not included).

Direct link to image

Applicable to this CEV switch (not included).
Applicable to this CEV switch (not included).
Applicable to this CEV switch (not included).

Direct link to image

9 terminal connection to the main harness
9 terminal connection to the main harness
9 terminal connection to the main harness

Direct link to image

Replacement wiring for the left handlebar switch (Series 2 - CEV).
27738015: Replacement wiring for the left handlebar switch (Series 2 - CEV).
27738015: Replacement wiring for the left handlebar switch (Series 2 - CEV).

Direct link to image

USD $17.25

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MG# 27603400

Right handlebar switch (Series 2 - CEV)

Replacement wiring for the right handlebar switch (Series 2 - CEV).

Applicable to this CEV switch (not included).
Applicable to this CEV switch (not included).
Applicable to this CEV switch (not included).

Direct link to image

4 terminal connection to the main harness
4 terminal connection to the main harness
4 terminal connection to the main harness

Direct link to image

Replacement wiring for the right handlebar switch (Series 2 - CEV).
27603400: Replacement wiring for the right handlebar switch (Series 2 - CEV).
27603400: Replacement wiring for the right handlebar switch (Series 2 - CEV).

Direct link to image

USD $7.75

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MG# 27749815

Front brake light switch

Connect the dash harness to the front brake light switch. Includes a new switch.

2 terminal connection to the dash harness.
2 terminal connection to the dash harness.
2 terminal connection to the dash harness.

Direct link to image

Front brake light switch.
Front brake light switch.
Front brake light switch.

Direct link to image

Front brake light switch
27749815: Front brake light switch
27749815: Front brake light switch

Direct link to image

USD $14.25

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MG# 29759150

Side stand switch

Replacement wiring for the side stand switch

WANTED: I very much want to reproduce this harness for the California III. Should you have this California III harness suitable for duplication, I would like to speak with you. For more information, e-mail: greg@thisoldtractor.com

USD $0.00

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MG# 29759150-BYPASS

Side stand switch bypass

Replacement wiring to bypass the side stand switch. Use at your own risk.

2 terminal connection to the main harness.
2 terminal connection to the main harness.
2 terminal connection to the main harness.

Direct link to image

Replacement wiring to bypass the side stand switch.
29759150: Replacement wiring to bypass the side stand switch.
29759150: Replacement wiring to bypass the side stand switch.

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USD $2.00

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MG# 29748550

Charging system ground

Ground wire for the alternator and regulator wiring. Applicable to both the Saprisa and Ducati charging systems. Includes original 5 mm post to 6.3 mm male spade adapter.

Charging system ground
29748550: Charging system ground
29748550: Charging system ground

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USD $2.50

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SAPRISA-VR-GROUND

Ground wire for Saprisa voltage regulator [Saprisa charging system]

Connect the body of the Saprisa voltage regulator to ground.

Ground wire for Saprisa voltage regulator
Ground wire for Saprisa voltage regulator
Ground wire for Saprisa voltage regulator

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USD $2.00

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MG# 29726450

Alternator to battery [Saprisa charging system]

Connects the alterntaor plug to the positive terminal on the battery. Applicable to the Saprisa charging system.

This terminal is inserted into the 3 terminal connection included with MG# 29725850.
This terminal is inserted into the 3 terminal connection included with MG# 29725850.
This terminal is inserted into the 3 terminal connection included with MG# 29725850.

Direct link to image

Red wire is inserted into the 3 terminal connection shared with the yellow wires. Reference MG# 29726450 and MG# 29725850.
Red wire is inserted into the 3 terminal connection shared with the yellow wires. Reference MG# 29726450 and MG# 29725850.
Red wire is inserted into the 3 terminal connection shared with the yellow wires. Reference MG# 29726450 and MG# 29725850.

Direct link to image

Alternator to battery
29726450: Alternator to battery
29726450: Alternator to battery

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USD $5.50

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MG# 29725850

Alternator to voltage regulator [Saprisa charging system]

Connects the alternator plug to the voltage regulator. Applicable to the Saprisa charging system.

3 terminal connection to the alternator harness.
3 terminal connection to the alternator harness.
3 terminal connection to the alternator harness.

Direct link to image

Red wire is inserted into the 3 terminal connection shared with the yellow wires. Reference MG# 29726450 and MG# 29725850.
Red wire is inserted into the 3 terminal connection shared with the yellow wires. Reference MG# 29726450 and MG# 29725850.
Red wire is inserted into the 3 terminal connection shared with the yellow wires. Reference MG# 29726450 and MG# 29725850.

Direct link to image

Alternator to voltage regulator
29725850: Alternator to voltage regulator
29725850: Alternator to voltage regulator

Direct link to image

USD $6.50

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SAPRISA-ALTERNATOR

Wires to solder directly to the Saprisa stator [Saprisa charging system]

Replacement wires for the Saprisa charging system. Ready to solder directly to the stator. Applicable to the Saprisa charging system.

3 terminal connection to the alternator harness.
3 terminal connection to the alternator harness.
3 terminal connection to the alternator harness.

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Wires to solder directly to the Saprisa stator
Wires to solder directly to the Saprisa stator
Wires to solder directly to the Saprisa stator

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USD $9.75

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MG# 28712500

Voltage regulator to main harness [Saprisa charging system]

Connects the voltage regulator to the main harness. Applicable to the Saprisa charging system.

Note: The original Saprisa plug is *NOT* included. You will need to re-use your original plug or source a replacement. The photos below show how and where to insert each wire.

These two wires connect to the main harness. Each must be inserted into the original Saprisa plug.
These two wires connect to the main harness. Each must be inserted into the original Saprisa plug.
These two wires connect to the main harness. Each must be inserted into the original Saprisa plug.

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Three separate Moto Guzzi part numbers inserted into an original Saprisa plug: MG# 28712500, MG# 29726450, and MG# 29725850.
Three separate Moto Guzzi part numbers inserted into an original Saprisa plug: MG# 28712500, MG# 29726450, and MG# 29725850.
Three separate Moto Guzzi part numbers inserted into an original Saprisa plug: MG# 28712500, MG# 29726450, and MG# 29725850.

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This is where each wire is inserted.
This is where each wire is inserted.
This is where each wire is inserted.

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Light blue wire is inserted into the L.E. hole.
Light blue wire is inserted into the L.E. hole.
Light blue wire is inserted into the L.E. hole.

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Yellow wires are inserted into the G holes.
Yellow wires are inserted into the G holes.
Yellow wires are inserted into the G holes.

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Red/black wire is inserted into the C hole.
Red/black wire is inserted into the C hole.
Red/black wire is inserted into the C hole.

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Voltage regulator to main harness
28712500: Voltage regulator to main harness
28712500: Voltage regulator to main harness

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USD $4.50

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MG# 29726461

Voltage regulator to battery positive [Ducati charging system]

WANTED: I very much want to reproduce this harness for the California III. Should you have this California III harness suitable for duplication, I would like to speak with you. For more information, e-mail: greg@thisoldtractor.com

USD $0.00

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MG# 29727551

Voltage regulator to main harness [Ducati charging system]

Connects the voltage regulator to the main harness. Applicable to the Ducati charging system.

WANTED: I very much want to reproduce this harness for the California III. Should you have this California III harness suitable for duplication, I would like to speak with you. For more information, e-mail: greg@thisoldtractor.com

USD $0.00

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MG# 19747105

Extension from dash wiring to headlight [Classic variant only]

Connects the dash harness to the rear of the headlight bucket.

4 terminal connection to the dash harness.
4 terminal connection to the dash harness.
4 terminal connection to the dash harness.

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Dash harness to rear of headlight bucket.
19747105: Dash harness to rear of headlight bucket.
19747105: Dash harness to rear of headlight bucket.

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USD $8.75

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MG# 23740418

Inside headlight bucket to headlight bulb [Classic variant only]

WANTED: I very much want to reproduce this harness for the California III. Should you have this California III harness suitable for duplication, I would like to speak with you. For more information, e-mail: greg@thisoldtractor.com

USD $0.00

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MG# 29731460

Ignition switch wiring from switch to dash harness [beleived to fit Full Fairing variant only]

Connects the dash harness to the ignition switch.

4 terminal connection to the dash harness.
4 terminal connection to the dash harness.
4 terminal connection to the dash harness.

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Flag terminal connections to the ignition switch.
Flag terminal connections to the ignition switch.
Flag terminal connections to the ignition switch.

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Fitment of flag terminals to the ignition switch.
Fitment of flag terminals to the ignition switch.

Photo courtesy of Charlie Mullendore of Antietam Classic Cycle.

Fitment of flag terminals to the ignition switch.

Photo courtesy of Charlie Mullendore of Antietam Classic Cycle.

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Ignition switch wiring from switch to dash harness.
29731460: Ignition switch wiring from switch to dash harness.
29731460: Ignition switch wiring from switch to dash harness.

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USD $12.50

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Custom Sub-Harnesses

Part Number Description Photo Price
SWITCH-TONTI

Multifunction handlebar switch pre-wired for Moto Guzzi Tonti models

After 10 years of building Moto Guzzi harnesses and supporting my customers, I have learned that people experience the most frustration and challenges when attempting to wire the left handlebar switch (by far). To help alleviate these issues, I am now offering this brand new switch with period appearance. The switch features a metal body and fits 22 mm (78 inch) handlebars. It is pre-wired so that you can mount it on your handlebar and plug in the wires quickly and easily.

I chose this switch because of its functionality, size, and appearance. While it does not boast all of the features and functions of a modern switch, it is a good basic switch that is appropriate to the Tonti frames. I use a switch like this on my personal Ambassador and I find it easy to use and my thumb operates all of the controls with ease. As with all handlebar switches, I strongly recommend the use of relays for the headlight circuit. I have an excellent relay solution available for purchase.

  • Has a true off position where both the running lights and headlight are off.
  • Headlight switch has the standard low beam and high beam selector.
  • Turn signal switch functions as you would expect: move the switch left to actuate the left turn signals; move the switch right to actuate the right turn signals; move the switch to the middle position to turn off turn signals.
  • Simple push-button horn.
  • Can be fit between the handlebar grip and the clutch perch (this is my recommended location for ease of use).
Close-up of high/low, on/off, turn signal switches; and horn button.
Close-up of high/low, on/off, turn signal switches; and horn button.
Close-up of high/low, on/off, turn signal switches; and horn button.

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Forward-facing side of the switch.
Forward-facing side of the switch.
Forward-facing side of the switch.

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Molex plug ready to plug into your harness (this end will be customized for your specific model).
Molex plug ready to plug into your harness (this end will be customized for your specific model).
Molex plug ready to plug into your harness (this end will be customized for your specific model).

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Multifunction handlebar switch pre-wired for Moto Guzzi Tonti models
Multifunction handlebar switch pre-wired for Moto Guzzi Tonti models
Multifunction handlebar switch pre-wired for Moto Guzzi Tonti models

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USD $85.00

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RELAY-HARNESS-TONTI

Relay solution for the horns, coils, headlight high beam, and headlight low beam

No more excuses! Relays greatly improve the performance of the horns, coils, and headlight. Your horns will be louder, your coils will get all the amperage they require, and your headlights will burn brighter when you use relays. Relays also dramatically extend the life of your handlebar switches.

This relay kit is a well thought-out and solid solution that is in line with what I believe Lino Tonti might have designed. A few points I'll mention:

  • Complete solution - includes all needed components.
  • Works with your original wiring harness.
  • The bank of four relay sockets is intended to be mounted between the battery and the rear plastic inner fender. This affords ease of installation as well as later access. This keeps the headlight bucket largely uncluttered and doesn't hide anything under the gas tank were it is difficult to access.
  • Wiring is color coded to original specifications.
  • Relay sockets are used to make installation easy and trouble free.
  • Each relay is wired independently from each other: horns, coils, headlight high beam, and headlight low beam. This slight redundancy permits one relay to fail without affecting the functionality of any other relay.
  • Includes all four needed relays.
  • Relays are of a standard size and easily replaced at any time (they simply plug into the socket).
  • Simple installation - See installation instructions.
The bank of 4 relays.
The bank of 4 relays.
The bank of 4 relays.

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These wires connect to battery positive terminal.
These wires connect to battery positive terminal.
These wires connect to battery positive terminal.

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These wires are grounded to the frame where the rear fender is secured to the frame.
These wires are grounded to the frame where the rear fender is secured to the frame.
These wires are grounded to the frame where the rear fender is secured to the frame.

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This wire is connected to the battery negative terminal.
This wire is connected to the battery negative terminal.
This wire is connected to the battery negative terminal.

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Connections to main harness and headlight.
Connections to main harness and headlight.
Connections to main harness and headlight.

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Headlight plug.
Headlight plug.
Headlight plug.

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Fit Molex plug after routing wires through hole in headlight bucket.
Fit Molex plug after routing wires through hole in headlight bucket.
Fit Molex plug after routing wires through hole in headlight bucket.

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These wires connect to both horns.
These wires connect to both horns.
These wires connect to both horns.

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The relay brackets have mounting holes which you can use to mount to your plastic inner fender.
The relay brackets have mounting holes which you can use to mount to your plastic inner fender.
The relay brackets have mounting holes which you can use to mount to your plastic inner fender.

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Installation instructions

The complete relay solution you will receive.
The complete relay solution you will receive.
The complete relay solution you will receive.

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USD $100.00

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KS-TO-MOLEX

Easy plug in solution for connecting K&S switches on Tonti models originally equipped with Molex plugs.

K&S makes a variety of good quality, affordable handlebar switches that are popular replacements for the original switch gear. The K&S 12-0030 is one popular model.

No more need to fiddle with butt connectors, soldering, or heat shrink. Just plug the 9-pin connector into the plug that came with your K&S switch, and the other end into the 12-pin connector on the back of your headlight shell. Made specifically to support the 850 T, 850 T3, V1000 I-Convert, V1000 G5, 1000 SP, Le Mans, Le Mans III, and other such models. If in doubt as to whether it will work with your model, just ask. I am happy to build to suit your Guzzi.

Please note: Some original handlebar switches were grounded through the handlebar. Other original switches were grounded through the Molex 12-pin connector. If needed for your application, a separate ground wire will be provided for use inside the headlight shell. Simply fit it in position 3 of the 12-pin Molex plug inside the headlight shell (position 1 has a red/black wire). Connect the other end with the piggyback terminal to the ground location inside the headlight shell.

When ordering: Please specify specific K&S switch you are using and the total length needed.

This end plugs into the connector from the K&S switch.
This end plugs into the connector from the K&S switch.
This end plugs into the connector from the K&S switch.

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This end plugs into the Moto Guzzi harness.
This end plugs into the Moto Guzzi harness.
This end plugs into the Moto Guzzi harness.

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K&S to Molex adapter for Moto Guzzi motorcycles.
K&S to Molex adapter for Moto Guzzi motorcycles.
K&S to Molex adapter for Moto Guzzi motorcycles.

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USD $20.00

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MOLEX-TO-MOLEX-LEFT

Easy plug in solution for connecting aftermarket left-side handlebar switches on Tonti models originally equipped with Molex plugs.

Aftermarket switches sometimes use Molex plugs. Generally, the plugs used do not match the Guzzi size or pin configuration. Tomaselli and Domino switches sometimes fall into this category.

No more need to fiddle with butt connectors, soldering, or heat shrink. Just plug the Molex connector into the plug that came with your aftermarket switch, and the other end into the 12-pin connector on the back of your headlight shell. Made specifically to support the 850 T, 850 T3, V1000 I-Convert, V1000 G5, 1000 SP, Le Mans, Le Mans III, and other such models. If in doubt as to whether it will work with your model, just ask. I am happy to build to suit your Guzzi.

Please note: Some original handlebar switches were grounded through the handlebar. Other original switches were grounded through the Molex 12-pin connector. If needed for your application, a separate ground wire will be provided for use inside the headlight shell. Simply fit it in position 3 of the 12-pin Molex plug inside the headlight shell (position 1 has a red/black wire). Connect the other end with the piggyback terminal to the ground location inside the headlight shell.

When ordering: Please specify the aftermarket switch you are using and the total length needed.

This end plugs into the Moto Guzzi harness.
This end plugs into the Moto Guzzi harness.
This end plugs into the Moto Guzzi harness.

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This end plugs into the Domino harness.
This end plugs into the Domino harness.
This end plugs into the Domino harness.

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Example Domino switch.
Example Domino switch.
Example Domino switch.

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Molex to Molex adapter
Molex to Molex adapter
Molex to Molex adapter

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USD $20.00

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DOMINO-HORN-RELAY-PLUG

Relay and needed wiring to operate the horns using positive current (instead of the original Guzzi handlebar switch that provided the ground for the horns).

The Domino handlebar switch actuates the horns using positive current whereas the original Guzzi switch actuated the horn by providing a ground. This sub-harness replaces the relay under the fuel tank with a new relay and provides the necessary wiring to actuate the horns.

Installation instructions:

  1. Remove the fuel tank to gain access to the wiring.
  2. Disconnect the existing black and brown wires from the horns.
  3. Connect the existing black wire that you just disconnected to terminal 86 on the new relay.
  4. Connect the new black and brown wires to the horns.
  5. Connect both black wires with ring terminals to ground.
  6. Route the new long brown wire to the fuse panel. Connect this brown wire to the fused side of the fuse panel.
Horn relay and wiring for use with Domino handlebar switches.
Horn relay and wiring for use with Domino handlebar switches.
Horn relay and wiring for use with Domino handlebar switches.

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USD $25.50

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MOLEX-TO-MOLEX-RIGHT

Easy plug in solution for connecting aftermarket right-side handlebar switches on Tonti models originally equipped with Molex plugs.

Aftermarket switches sometimes use Molex plugs. Generally, the plugs used do not match the Guzzi size or pin configuration. Tomaselli and Domino switches sometimes fall into this category.

No more need to fiddle with butt connectors, soldering, or heat shrink. Just plug the Molex connector into the plug that came with your aftermarket switch, and the other end into the 12-pin connector on the back of your headlight shell. Made specifically to support the 850 T, 850 T3, V1000 I-Convert, V1000 G5, 1000 SP, Le Mans, Le Mans III, and other such models. If in doubt as to whether it will work with your model, just ask. I am happy to build to suit your Guzzi.

Please note: Some original handlebar switches were grounded through the handlebar. Other original switches were grounded through the Molex 4-pin connector. A separate ground wire is provided if needed for your application.

When ordering: Please specify the aftermarket switch you are using and the total length needed.

This end plugs into the Moto Guzzi harness.
This end plugs into the Moto Guzzi harness.
This end plugs into the Moto Guzzi harness.

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This end plugs into the Domino harness.
This end plugs into the Domino harness.
This end plugs into the Domino harness.

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Example Domino switch.
Example Domino switch.
Example Domino switch.

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Molex to Molex adapter
Molex to Molex adapter
Molex to Molex adapter

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USD $8.00

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MOLEX-3

3 terminal Molex plug and 3 male terminals

Useful for installing on a universal right handlebar switch.

Molex terminals and connector.
Molex terminals and connector.
Molex terminals and connector.

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USD $1.75

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MOLEX-4

4 terminal Molex plug and 4 male terminals

Useful for installing on a universal right handlebar switch.

Molex terminals and connector.
Molex terminals and connector.
Molex terminals and connector.

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USD $2.50

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MOLEX-12

12 terminal Molex plug and 12 male terminals

Useful for installing on a universal left handlebar switch.

Molex terminals and connector.
Molex terminals and connector.
Molex terminals and connector.

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USD $6.25

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Components

Part Number Description Photo Price
MG# 12702900

Rubber boot/cover for small wire terminals.

Intended to cover smaller wires with ring terminals. Sold each.

Rubber boot/cover shown in use with a 12 AWG wire and a 6 mm ring terminal. (MG# 12702900).
Rubber boot/cover shown in use with a 12 AWG wire and a 6 mm ring terminal. (MG# 12702900).
Rubber boot/cover shown in use with a 12 AWG wire and a 6 mm ring terminal. (MG# 12702900).

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Rubber boot/cover shown in use with a 12 AWG wire and a 6 mm ring terminal. (MG# 12702900).
Rubber boot/cover shown in use with a 12 AWG wire and a 6 mm ring terminal. (MG# 12702900).
Rubber boot/cover shown in use with a 12 AWG wire and a 6 mm ring terminal. (MG# 12702900).

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Rubber boot/cover shown in use with a 12 AWG wire and a 6 mm ring terminal. (MG# 12702900).
Rubber boot/cover shown in use with a 12 AWG wire and a 6 mm ring terminal. (MG# 12702900).
Rubber boot/cover shown in use with a 12 AWG wire and a 6 mm ring terminal. (MG# 12702900).

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Rubber boot/cover for small wire terminals (MG# 12702900).
12702900: Rubber boot/cover for small wire terminals (MG# 12702900).
12702900: Rubber boot/cover for small wire terminals (MG# 12702900).

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USD $2.50

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MG# 12703000

Rubber boot/cover for battery cables.

Intended to cover the terminal located at the starter solenoid. Not suitable for fitment at battery terminals. Sold each.

Rubber boot/cover shown in use with a 6 AWG battery cable (MG# 12703000).
Rubber boot/cover shown in use with a 6 AWG battery cable (MG# 12703000).
Rubber boot/cover shown in use with a 6 AWG battery cable (MG# 12703000).

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Rubber boot/cover shown in use with a 6 AWG battery cable (MG# 12703000).
Rubber boot/cover shown in use with a 6 AWG battery cable (MG# 12703000).
Rubber boot/cover shown in use with a 6 AWG battery cable (MG# 12703000).

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Rubber boot/cover for battery cables (MG# 12703000).
12703000: Rubber boot/cover for battery cables (MG# 12703000).
12703000: Rubber boot/cover for battery cables (MG# 12703000).

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USD $2.50

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MG# 90706765

O-ring to seal the large, 100 mm speedometer to the dash.

This O-ring seals the speedometer to the dash.

O-ring to seal the large, 100 mm speedometer to the single gauge civilian or police dash.
90706765: O-ring to seal the large, 100 mm speedometer to the single gauge civilian or police dash.
90706765: O-ring to seal the large, 100 mm speedometer to the single gauge civilian or police dash.

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USD $2.00

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MG# 90706746

Set of two O-rings to seal the smaller, 80 mm speedometer and tachometer to the dash.

These O-rings seal each gauge to the dash.

Set of two O-rings to seal the smaller, 80 mm speedometer and tachometer to the dual gauge civilian dash.
90706746: Set of two O-rings to seal the smaller, 80 mm speedometer and tachometer to the dual gauge civilian dash.
90706746: Set of two O-rings to seal the smaller, 80 mm speedometer and tachometer to the dual gauge civilian dash.

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USD $4.00

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MG# 93400964

4 connection female spade connector

A great way to connect four wires without the need for male spade terminals (Moto Guzzi typically did not use male spade terminals on wiring harnesses). Accepts 6.3 mm (14 inch) terminals. Sold each.

Best to use a needle-nosed pair of pliers to insert and remove terminals.

4 connection female spade connector.
93400964: 4 connection female spade connector.
93400964: 4 connection female spade connector.

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USD $8.00

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MG# 93400863 MG# 93400963

3 connection female spade connector

A great way to split power to two devices such as driving lights, front and rear turn signals, etc. (Faston or Mamut number 405). Accepts 6.3 mm (14 inch) terminals. Sold each.

Best to use a needle-nosed pair of pliers to insert and remove terminals.

  • V7 Sport models require two of these connectors, one each to connect the right and left turn signal circuits.
  • 750 S models require two of these connectors, one each to connect the right and left turn signal circuits.
3 connection female spade connector.
93400863: 3 connection female spade connector.
93400863: 3 connection female spade connector.

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USD $6.00

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MG# 93400962

2 connection female spade connector

A great way to connect two wires without the need for male spade terminals (Moto Guzzi typically did not use male spade terminals on wiring harnesses). These are used on the Tonti framed models (Faston or FasBlok) and could be used in custom applications on the loop frame models. Accepts 6.3 mm (14 inch) terminals. Sold each.

2 connection female spade connector.
93400962: 2 connection female spade connector.
93400962: 2 connection female spade connector.

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USD $3.00

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BULLET-CONNECTOR

2 connection bullet connector

A great way to connect two male bullet terminals (double bullet connector). Accepts 4 mm (0.157 inch) terminals. Sold each.

2 connection bullet connector.
2 connection bullet connector.
2 connection bullet connector.

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USD $0.50

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BULB-HOLDER-SINGLE

Single terminal bulb holder

A very nice single terminal bulb holder with excellent fitment within the tube that is secured to the dash. Includes color-coded short jumper wire with a 4 mm female bullet terminal to mate perfectly with the original wiring harness. Accepts standard sized OEM bulbs. ~12 mm OD. Sold each.

  • V7 Sport models require two of these bulb holders, one to illuminate each gauge on the dash.
  • 750 S models require two of these bulb holders, one to illuminate each gauge on the dash.

When ordering: Please specify wire color and terminal.

Accepts this style of bayonet bulb.
Accepts this style of bayonet bulb.

Photo courtesy of McMaster-Carr.

Accepts this style of bayonet bulb.
Accepts this style of bayonet bulb.

Photo courtesy of McMaster-Carr.

Single terminal bulb holder.
Single terminal bulb holder.
Single terminal bulb holder.

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USD $7.50

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BULB-HOLDER-DUAL

Dual terminal bulb holder

A great replacement dual terminal bulb holder and very close to the original in design. Accepts two 6.35 mm female spade terminals, just like the original. Excellent fitment within the tube that is secured to the dash. Accepts standard sized OEM bulbs. ~12 mm OD. Sold each.

  • V7 Sport models require four of these bulb holders, one to illuminate each indicator light on the dash.
  • 750 S models require four of these bulb holders, one to illuminate each indicator light on the dash.
  • 850 T models require two of these bulb holders, one to illuminate each gauge.
Accepts this style of bayonet bulb.
Accepts this style of bayonet bulb.

Photo courtesy of McMaster-Carr.

Accepts this style of bayonet bulb.
Accepts this style of bayonet bulb.

Photo courtesy of McMaster-Carr.

Dual terminal bulb holder.
Dual terminal bulb holder.
Dual terminal bulb holder.

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USD $5.00

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MG# 17760650 MG# 14768650 MG# 10754905

Dual terminal bulb holder

A great replacement dual terminal bulb holder and very close to the original in design. Accepts two 6.35 mm female spade terminals, just like the original. Excellent fitment within the tube that is secured to the dash. Accepts standard sized OEM bulbs. ~12 mm OD. Sold each.

  • 750 S3 models require two of these bulb holders, one to illuminate each gauge.
  • 850 T3 models require two of these bulb holders, one to illuminate each gauge.
  • Le Mans models require two of these bulb holders, one to illuminate each gauge.
  • Le Mans 1000 models require two of these bulb holders, one to illuminate each gauge.
  • California III models require two of these bulb holders, one to illuminate each gauge.
Accepts this style of wedge bulb.
Accepts this style of wedge bulb.

Photo courtesy of McMaster-Carr.

Dual terminal bulb holder.
17760650: Dual terminal bulb holder.
17760650: Dual terminal bulb holder.

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USD $5.00

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MG# 93450322 MG# 93450122

Light bulb for gauge and indicator lights

3.36 watt lamp, bayonet base, 500 hour average life, approximately 10 mm (0.41 inch) in diameter. Sold each.

Note: The MG# 93450322 bulbs are longer in overall length, but brighter than MG# 10744910. In general, I recommend MG# 93450322 because they are brighter and easier to see. If you know that your dash requires a shorter bulb, please order MG# 10744910.

  • V7 Sport models require 2 of these light bulbs, for gauge light illumination.
  • 750 S models require 2 of these light bulbs, for gauge light illumination.
  • 850 T models require 3 of these light bulbs, two for gauge illumination and one for the city light.
  • 750 S3 models require 1 of these light bulbs, for the city light.
  • 850 T3 models require 1 of these light bulbs, for the city light.
  • 850 T3 California models require 2 of these light bulbs, one for gauge illumination and one for the city light.
  • 850 T5 models require 1 of these light bulbs, for the city light.
  • V1000 I-Convert models require 2 of these light bulbs, one for gauge illumination and one for the city light.
  • V1000 G5 models require 2 of these light bulbs, one for gauge illumination and one for the city light.
  • 1000 SP models require 1 of these light bulbs, for the city light.
  • Le Mans models require 1 of these light bulbs, for the city light.
  • Le Mans II models require 1 of these light bulbs, for the city light.
  • Le Mans CX 100 models require 1 of these light bulbs, for the city light.
  • Le Mans III models require 1 of these light bulbs, for the city light.
  • Le Mans 1000 models require 1 of these light bulbs, for the city light.
  • California II models require 4 of these light bulbs, three for gauge illumination and one for the city light.
  • California III models require 1 of these light bulbs, for the city light.

This bulb may also be used as a city light or pilot light.

Light bulb for gauge and indicator lights.
93450322: Light bulb for gauge and indicator lights.
93450322: Light bulb for gauge and indicator lights.

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USD $0.75

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MG# 10744910

Light bulb for gauge and indicator lights

1.728 watt lamp, bayonet base, 1000 hour average life, approximately 10 mm (0.41 inch) in diameter. Sold each.

Note: The MG# 93450322 bulbs are longer in overall length, but brighter than MG# 10744910. In general, I recommend MG# 93450322 because they are brighter and easier to see. If you know that your dash requires a shorter bulb, please order MG# 10744910.

  • V7 Sport models require 2 of these light bulbs, for gauge light illumination.
  • 750 S models require 2 of these light bulbs, for gauge light illumination.
  • 850 T models require 3 of these light bulbs, two for gauge illumination and one for the city light.
  • 750 S3 models require 1 of these light bulbs, for the city light.
  • 850 T3 models require 1 of these light bulbs, for the city light.
  • 850 T3 California models require 2 of these light bulbs, one for gauge illumination and one for the city light.
  • 850 T5 models require 1 of these light bulbs, for the city light.
  • V1000 I-Convert models require 2 of these light bulbs, one for gauge illumination and one for the city light.
  • V1000 G5 models require 2 of these light bulbs, one for gauge illumination and one for the city light.
  • 1000 SP models require 1 of these light bulbs, for the city light.
  • Le Mans models require 1 of these light bulbs, for the city light.
  • Le Mans II models require 1 of these light bulbs, for the city light.
  • Le Mans CX 100 models require 1 of these light bulbs, for the city light.
  • Le Mans III models require 1 of these light bulbs, for the city light.
  • Le Mans 1000 models require 1 of these light bulbs, for the city light.
  • California II models require 4 of these light bulbs, three for gauge illumination and one for the city light.
  • California III models require 1 of these light bulbs, for the city light.
Light bulb for gauge and indicator lights.
10744910: Light bulb for gauge and indicator lights.
10744910: Light bulb for gauge and indicator lights.

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USD $0.75

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MG# 14744910

Light bulb for indicator lights

2 watt lamp, bayonet base, 1000 hour average life, approximately 7 mm (0.28 inch) in diameter. Sold each.

  • V7 Sport models require 4 of these light bulbs, for indicator light illumination.
  • 750 S models require 4 of these light bulbs, for indicator light illumination.
  • 850 T models require 4 of these light bulbs, for indicator light illumination.
Light bulb for indicator lights.
14744910: Light bulb for indicator lights.
14744910: Light bulb for indicator lights.

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USD $1.50

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MG# 93450224

Light bulb for tail light

Long life bulb to help prevent failure due to vibration (1157LL), dual element, 26.88 / 8.26 watt lamp, bayonet base, 2400 / 10000 hour average life. Sold each.

  • V7 Sport models require 1 of these light bulbs.
  • 750 S models require 1 of these light bulbs.
  • 850 T models require 1 of these light bulbs.
  • 750 S3 models require 1 of these light bulbs.
  • 850 T3 models require 1 of these light bulbs.
  • 850 T3 California models require 1 of these light bulbs.
  • 850 T5 models require 2 of these light bulbs.
  • V1000 I-Convert models require 2 of these light bulbs.
  • V1000 G5 models require 2 of these light bulbs.
  • 1000 SP models require 2 of these light bulbs.
  • Le Mans series 1 models require 1 of these light bulbs.
  • Le Mans series 2 models require 2 of these light bulbs.
  • Le Mans II models require 2 of these light bulbs.
  • Le Mans CX 100 models require 2 of these light bulbs.
  • Le Mans III models require 2 of these light bulbs.
  • Le Mans 1000 models require 2 of these light bulbs.
  • California II models require 1 of these light bulbs.
  • California III models require 1 of these light bulbs.
  • 1000 S models require 1 of these light bulbs.
Light bulb for tail light.
93450224: Light bulb for tail light.
93450224: Light bulb for tail light.

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USD $1.50

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MG# 93450129

Light bulb for turn signals and parking lights

Long life bulb to help prevent failure due to vibration (1156LL), single element, 26.88 watt lamp, bayonet base, 2400 hour average life. Sold each.

  • V7 Sport models require 4 of these light bulbs.
  • 750 S models require 4 of these light bulbs.
  • 850 T models require 4 of these light bulbs.
  • 750 S3 models require 4 of these light bulbs.
  • 850 T3 models require 4 of these light bulbs.
  • 850 T3 California models require 4 of these light bulbs.
  • 850 T5 models require 4 of these light bulbs.
  • V1000 I-Convert models require 4 of these light bulbs.
  • V1000 G5 models require 4 of these light bulbs.
  • 1000 SP models require 4 of these light bulbs.
  • Le Mans models require 4 of these light bulbs.
  • Le Mans II models require 4 of these light bulbs.
  • Le Mans CX 100 models require 4 of these light bulbs.
  • Le Mans III models require 4 of these light bulbs.
  • Le Mans 1000 models require 4 of these light bulbs.
  • California II models require 4 of these light bulbs.
  • California III models require 4 of these light bulbs.
Light bulb for turn signals and parking lights.
93450129: Light bulb for turn signals and parking lights.
93450129: Light bulb for turn signals and parking lights.

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USD $1.50

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MG# 17762150MG# 93450120

Light bulb for gauge and indicator lights

3.78 watt lamp, wedge base, 2500 hour average life, approximately 10 mm (0.41 inch) in diameter. Sold each.

  • V7 Sport models require none of these light bulbs.
  • 750 S models require none of these light bulbs.
  • 850 T models require none of these light bulbs.
  • 750 S3 models require 2 of these light bulbs.
  • 850 T3 models require 2 of these light bulbs.
  • 850 T3 California models require 2 of these light bulbs.
  • 850 T5 models require 2 of these light bulbs.
  • V1000 I-Convert models require none of these light bulbs.
  • V1000 G5 models require none of these light bulbs.
  • 1000 SP models require 4 of these light bulbs.
  • Le Mans models require 2 of these light bulbs.
  • Le Mans II models require 4 of these light bulbs.
  • Le Mans CX 100 models require 4 of these light bulbs.
  • Le Mans III models require 4 of these light bulbs.
  • Le Mans 1000 series 1 models require 6 of these light bulbs.
  • Le Mans 1000 series 2 models require 5 of these light bulbs.
  • California II models require 2 of these light bulbs.
  • California III models require 2 of these light bulbs.
  • 1000 S models require 2 of these light bulbs.
Light bulb for gauge and indicator lights.
17762150: Light bulb for gauge and indicator lights.
17762150: Light bulb for gauge and indicator lights.

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USD $0.75

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MG# 93450140

Light bulb for indicator lights

1.40 watt lamp, wedge base, 500 hour average life, approximately 5 mm (0.23 inch) in diameter. Sold each.

  • V7 Sport models require none of these light bulbs.
  • 750 S models require none of these light bulbs.
  • 850 T models require none of these light bulbs.
  • 750 S3 models require 5 of these light bulbs.
  • 850 T3 models require 5 of these light bulbs.
  • 850 T3 California models require 10 of these light bulbs.
  • 850 T5 models require 6 of these light bulbs.
  • V1000 I-Convert models require 10 of these light bulbs.
  • V1000 G5 models require 10 of these light bulbs.
  • 1000 SP models require 8 of these light bulbs.
  • Le Mans models require 6 of these light bulbs.
  • Le Mans II models require 8 of these light bulbs.
  • Le Mans CX 100 models require 8 of these light bulbs.
  • Le Mans III models require 6 of these light bulbs.
  • Le Mans 1000 models require 6 of these light bulbs.
  • California II models require 5 of these light bulbs.
  • California III models require 8 of these light bulbs.
  • 1000 S models with an early dash require 8 of these light bulbs.
  • 1000 S models with a late dash require 5 of these light bulbs.
Light bulb for indicator lights.
93450140: Light bulb for indicator lights.
93450140: Light bulb for indicator lights.

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USD $0.75

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MG# 12734900

Starter button bracket

Bracket to fit the original starter button (22 mm diameter mounting hole). Stainless steel. Very nice. Starter button sold separately. Sold each.

Starter button bracket.
12734900: Starter button bracket.
12734900: Starter button bracket.

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USD $15.50

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MG# 26735001

Starter button

Momentary push button switch to actuate the starter. Fits the original bracket perfectly (22 mm diameter mounting hole) and comes complete with set screw terminals just like the original. Sturdy metal housing and nice quality black plastic securing nut. Sold each.

  • V7 Sport models require this switch.
  • 750 S models require this switch.
Starter button.
26735001: Starter button.
26735001: Starter button.

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USD $20.00

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MG# 26735001-BLACK

Starter button

Momentary push button switch to actuate the starter. Fits the original bracket perfectly (22 mm diameter mounting hole) and comes complete with set screw terminals just like the original. Nice quality black plastic housing and securing nut. Sold each.

  • V7 Sport models require this switch.
  • 750 S models require this switch.
Starter button.
26735001: Starter button.
26735001: Starter button.

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USD $14.00

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MG# 17743000

Original fuse block

New production, very good quality fuse box. Accepts six fuses (MG# 17742550 or MG# 12742500). Comes with clear cover and two jumpers. Additional jumpers available. Sold each.

Fuse box
Fuse box
Fuse box

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Fuse box
Fuse box
Fuse box

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  • V7 Sport models do not use this style of fuse block.
  • 750 S models do not use this style of fuse block.
  • 850 T models use this fuse block; require 2 jumpers.
  • 750 S3 models use this fuse block; require 3 jumpers.
  • 850 T3 models use this fuse block; require 3 jumpers.
  • V1000 I-Convert models use this fuse block; require 3 jumpers.
  • V1000 G5 models use this fuse block; require 3 jumpers.
  • 1000 SP models use this fuse block; require 3 jumpers.
  • 1000 SP II models use this fuse block; require 3 jumpers.
  • California II models use this fuse block; require 3 jumpers.
  • California III models do not use this style of fuse block.
  • Le Mans models use this fuse block; require 2 jumpers.
  • Le Mans II models use this fuse block; require 3 jumpers.
  • Le Mans CX 100 models use this fuse block; require 3 jumpers.
  • Le Mans III models use use fuse block; require 3 jumpers.
  • Le Mans 1000 models do not use this style of fuse block.
  • 1000 S models do not use this style of fuse block.
Fuse box
17743000: Fuse box
17743000: Fuse box

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USD $42.00

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MG# 17743000-JUMPER

Jumper for original fuse block

Jumper connection used to join multiple fuse circuits. Fits the original fuse box. Sold each.

  • V7 Sport models do not use any of these jumpers.
  • 750 S models do not use any of these jumpers.
  • 850 T models use 2 of these jumpers.
  • 750 S3 models use 3 of these jumpers.
  • 850 T3 models use 3 of these jumpers.
  • V1000 I-Convert models use 3 of these jumpers.
  • V1000 G5 models use 3 of these jumpers.
  • 1000 SP models use 3 of these jumpers.
  • 1000 SP II models use 3 of these jumpers.
  • California II models use 3 of these jumpers.
  • California III models do not use any of these jumpers.
  • Le Mans models use 2 of these jumpers.
  • Le Mans II models use 3 of these jumpers.
  • Le Mans CX 100 models use 3 of these jumpers.
  • Le Mans III models use 3 of these jumpers.
  • Le Mans 1000 models do not use any of these jumpers.
  • 1000 S models do not use any of these jumpers.
Jumper for original fuse block
17743000: Jumper for original fuse block
17743000: Jumper for original fuse block

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USD $1.50

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MG# 12742500

25 amp fuse

Original style fuse to fit the original fuse block. Sold each.

  • V7 Sport models require 1 of these fuses.
  • 750 S models require 1 of these fuses.
25 amp fuse.
12742500: 25 amp fuse.
12742500: 25 amp fuse.

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USD $0.50

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MG# 17742550

16 amp fuse

Original style fuse to fit the original fuse block. Sold each.

  • V7 Sport models require 8 of these fuses.
  • 750 S models require 8 of these fuses.
  • 850 T models require 6 of these fuses.
  • 750 S3 models require 6 of these fuses.
  • 850 T3 models require 6 of these fuses.
  • V1000 I-Convert models require 6 of these fuses.
  • V1000 G5 models require 6 of these fuses.
  • 1000 SP models require 6 of these fuses.
  • 1000 SP II models require 6 of these fuses.
  • California II models require 6 of these fuses.
  • Le Mans models require 6 of these fuses.
  • Le Mans II models require 6 of these fuses.
  • Le Mans CX 100 models require 6 of these fuses.
  • Le Mans III models require 6 of these fuses.
16 amp fuse.
17742550: 16 amp fuse.
17742550: 16 amp fuse.

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USD $0.50

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MG# 28743060

Fuse holder

Single fuse holder that may be connected to other single fuse holders to form a row. Sold each. Fuses sold separately.

  • Le Mans 1000 models require 5 of these fuse holders.
Fuse holder.
28743060: Fuse holder.
28743060: Fuse holder.

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USD $2.50

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MG# 28742560

15 amp ATO / ATC fuse

As used on many modern Guzzis accepting blade style fuses. Sold each.

  • Le Mans 1000 models require 5 of these fuses.
  • 1000 S models require 4 of these fuses.
  • California III models require 4 of these fuses.
15 amp ATO / ATC fuse.
28742560: 15 amp ATO / ATC fuse.
28742560: 15 amp ATO / ATC fuse.

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USD $0.25

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POST-TO-SPADE-ADAPTER

5 mm post to 6.3 mm male spade adapter

~5 mm diameter hole permits fitment to the neutral switch and dash grounding points (as original). One required per neutral switch. Dash usage varies by model. Sold each.

  • V7 Sport models require none of these adapters.
  • 750 S models MAY require 1 of these adapters, for the neutral switch. Only needed if not fitting MG# 14748605.
  • 850 T models require 1 of these adapters, for the neutral switch.
  • 750 S3 models require 1 of these adapters, for the neutral switch.
  • 850 T3 models require 1 of these adapters, for the neutral switch.
  • 850 T3 California models require 1 of these adapters, for the neutral switch.
  • 850 T5 models require 1 of these adapters, for the neutral switch.
  • V1000 I-Convert models require 1 of these adapters, for the neutral switch.
  • V1000 G5 models require 1 of these adapters, for the neutral switch.
  • 1000 SP models require 1 of these adapters, for the neutral switch.
  • Le Mans models require 1 of these adapters, for the neutral switch.
  • Le Mans II models require 1 of these adapters, for the neutral switch.
  • Le Mans CX 100 models require 1 of these adapters, for the neutral switch.
  • Le Mans III models require 1 of these adapters, for the neutral switch.
  • Le Mans 1000 models require 1 of these adapters, for the neutral switch.
  • California II models require 1 of these adapters, for the neutral switch.
  • California III models require 1 of these adapters, for the neutral switch.
  • 1000 S models require 1 of these adapters, for the neutral switch.
5 mm post to 6.3 mm male spade adapter.
5 mm post to 6.3 mm male spade adapter.
5 mm post to 6.3 mm male spade adapter.

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USD $0.50

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MG# 13741640-LED

Bracket for mounting LED turn signal flashers

Designed specifically for LED flashers that are rubber mounted. Mounting hole is 7 mm in diameter. Sold each.

Bracket for mounting LED turn signal flashers. Flasher not included.
Bracket for mounting LED turn signal flashers. Flasher not included.
Bracket for mounting LED turn signal flashers. Flasher not included.

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Bracket for mounting LED turn signal flashers.
13741640: Bracket for mounting LED turn signal flashers.
13741640: Bracket for mounting LED turn signal flashers.

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USD $3.00

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MG# 13741640

Bracket for mounting turn signal flashers

Fits standard sized round thermal and electronic flashers. Mounting hole is 6 mm in diameter. Sold each.

Bracket for mounting turn signal flashers.
13741640: Bracket for mounting turn signal flashers.
13741640: Bracket for mounting turn signal flashers.

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USD $3.00

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MG# 12745760

Push-pull switch

Good quality switch with screw-type terminals. 25 amp capacity. 8 mm × 1 mm threads. Knob unscrews for fitment. Sold each.

Push-pull switch.
12745760: Push-pull switch.
12745760: Push-pull switch.

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USD $5.00

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MG# 12734900ALT

Bracket for push-pull switch

This bracket is identical to the starter button bracket, except the hole is ~8 mm in diameter. The intent is to mount this bracket on the left clutch perch, mirroring the starter button bracket. Then, a push-pull switch may be fit to the bracket and used to conveniently actuate spot lights or other electrical components. Stainless steel. Very nice. Push-pull switch sold separately. Sold each.

Bracket for push pull switch.
12734900: Bracket for push pull switch.
12734900: Bracket for push pull switch.

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USD $15.50

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MG# 13745740 MG# 17745760 MG# 18745701

Toggle switch

Good quality sealed switch with six quick connect terminals (as original). 15 amp capacity, on-on double pole double throw, comes complete with mounting hardware (as shown). Sold each.

  • V7 Sport models require none of these switches.
  • 750 S models require none of these switches.
  • 850 T models require none of these switches.
  • 750 S3 models require none of these switches.
  • 850 T3 models require none of these switches.
  • 850 T3 California models require 2 of these switches.
  • V1000 I-Convert models require 2 of these switches.
  • V1000 G5 models require 2 of these switches.
  • 1000 SP models require 1 of these switches.
  • 1000 SP II models require 1 of these switches.
  • California II models require 1 of these switches.
  • California III models require none of these switches.
  • Le Mans models require none of these switches.
  • Le Mans II models require 1 of these switches.
  • Le Mans CX 100 models require 1 of these switches.
  • Le Mans III models require 1 of these switches.
  • Le Mans 1000 models require none of these switches.
  • 1000 S models require none of these switches.
  • California III models require none of these switches.
Toggle switch.
13745740: Toggle switch.
13745740: Toggle switch.

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USD $12.50

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TOGGLE-BOOT

Half height toggle switch boot

Half-height boot for the toggle switch. Uses standard 1532-32 inch threads. Be sure to rotate the toggle with the boot when fitting the boot to the switch. Sold each.

  • V7 Sport models require none of these boots.
  • 750 S models require none of these boots.
  • 850 T models require none of these boots.
  • 750 S3 models require none of these boots.
  • 850 T3 models require none of these boots.
  • V1000 I-Convert models require 2 of these boots.
  • V1000 G5 models require 2 of these boots.
  • 1000 SP models require 1 of these boots.
  • 1000 SP II models require 1 of these boots.
  • California II models require 1 of these boots.
  • California III models require none of these boots.
  • Le Mans models require none of these boots.
  • Le Mans II models require 1 of these boots.
  • Le Mans CX 100 models require 1 of these relays.
  • Le Mans III models require 1 of these boots.
  • Le Mans 1000 models require none of these boots.
  • 1000 S models require none of these boots.
  • California III models require none of these boots.
Half height toggle switch boot.
Half height toggle switch boot.
Half height toggle switch boot.

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USD $4.50

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TOGGLE-BOOT-FULL

Full height toggle switch boot

Full-height boot for the toggle switch. Uses standard 1532-32 inch threads. Be sure to rotate the toggle with the boot when fitting the boot to the switch. Sold each.

  • V7 Sport models require none of these boots.
  • 750 S models require none of these boots.
  • 850 T models require none of these boots.
  • 750 S3 models require none of these boots.
  • 850 T3 models require none of these boots.
  • V1000 I-Convert models require 2 of these boots.
  • V1000 G5 models require 2 of these boots.
  • 1000 SP models require 1 of these boots.
  • 1000 SP II models require 1 of these boots.
  • California II models require 1 of these boots.
  • California III models require none of these boots.
  • Le Mans models require none of these boots.
  • Le Mans II models require 1 of these boots.
  • Le Mans CX 100 models require 1 of these relays.
  • Le Mans III models require 1 of these boots.
  • Le Mans 1000 models require none of these boots.
  • 1000 S models require none of these boots.
  • California III models require none of these boots.
Full height toggle switch boot.
Full height toggle switch boot.
Full height toggle switch boot.

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USD $4.00

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MG# 12732500

5 pin mini relay (SPDT) with mounting bracket.

40 amp rating.

Sealed construction. Resistor is used across the coil terminals for long life and reliable service. 40 amp maximum continuous current rating on the normally open circuit. 30 amp maximum continuous current rating on the normally closed circuit.

Great replacement for the starter relay or for use with custom functions. Mounting bracket has a 5.5 mm diameter hole. Sold each.

  • V7 Sport models require 1 of these relays (with the later starter).
  • 750 S models require 1 of these relays (with the later starter).
  • 850 T models require 2 of these relays.
  • 750 S3 models require 2 of these relays.
  • 850 T3 models require 2 of these relays.
  • V1000 I-Convert models require 2 of these relays.
  • V1000 G5 models require 2 of these relays.
  • 1000 SP models require 2 of these relays.
  • California II models require 2 of these relays.
  • California III models require none of these relays.
  • Le Mans models require 2 of these relays.
  • Le Mans II models require 2 of these relays.
  • Le Mans CX 100 models require 2 of these relays.
  • Le Mans III models require 2 of these relays.
  • Le Mans 1000 models require none of these relays.
  • 1000 S models require none of these relays.
  • California III models require none of these relays.
40 amp, 5 pin mini relay (SPDT) with mounting bracket.
12732500: 40 amp, 5 pin mini relay (SPDT) with mounting bracket.
12732500: 40 amp, 5 pin mini relay (SPDT) with mounting bracket.

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USD $5.00

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MG# 28732560

5 pin mini relay (SPDT) without mounting bracket.

40 amp rating.

Great replacement for the starter relay or for use with custom functions. Sold each.

  • Le Mans 1000 models require 2 of these relays.
  • 1000 S series 1 models require 3 of these relays.
  • 1000 S series 2 models require 2 of these relays.
  • California III models require 3 of these relays.
40 amp, 5 pin mini relay (SPDT) without mounting bracket.
28732560: 40 amp, 5 pin mini relay (SPDT) without mounting bracket.
28732560: 40 amp, 5 pin mini relay (SPDT) without mounting bracket.

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USD $5.00

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MG# 30732510

5 pin mini relay (SPST) without mounting bracket.

Sealed construction. 40 amp maximum continuous current rating.

So far, the only Guzzi I know of that requires this relay is the 1000 S series 2 with the later Digiplex ignition module. As far as I know, all other applications should use MG# 28732560. Sold each.

  • Le Mans 1000 models require none of these relays.
  • 1000 S series 1 models require none of these relays.
  • 1000 S series 2 models require 1 of these relays.
  • California III models require none of these relays.
40 amp, 5 pin mini relay (SPST) without mounting bracket.
30732510: 40 amp, 5 pin mini relay (SPST) without mounting bracket.
30732510: 40 amp, 5 pin mini relay (SPST) without mounting bracket.

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USD $7.50

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MG# 30732560

5 pin micro relay (SPDT) without mounting bracket.

30 amp rating.

Sealed construction. Resistor is used across the coil terminals for long life and reliable service. 30 amp maximum continuous current rating on the normally open circuit. 20 amp maximum continuous current rating on the normally closed circuit.

Used on many later Guzzis. Fits my custom relay solution. Great for use with custom functions. Sold each.

35 amp / 25 amp, 5 pin micro relay (SPDT) without mounting bracket.
30732560: 35 amp / 25 amp, 5 pin micro relay (SPDT) without mounting bracket.
30732560: 35 amp / 25 amp, 5 pin micro relay (SPDT) without mounting bracket.

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USD $5.00

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