Spark plug resistor cap
Suzuki DR350 motorcycles, 1990 - 1999.
Buy O-rings for your DR350. Good quality + low prices.
I replaced my original spark plug cap with an NGK VD05FP (8429). It has the waterproof covers; fits and works a treat. I've used it on both a 1993 DR350 and a 1999 DR350 (each uses different spark plugs).