O-ring to seal the oil lines to the engine case
Part number: 0928012008
USD $0.75
Compare to a typical dealer price of USD $3.09 each.
O-ring to seal the oil lines to the engine case
Quick reference code: OR-1
O-ring to seal the oil lines to the engine case (SPN# 09280-12008). Two are required. Sold each.

Photo courtesy of Gregory Bender.