Crankshaft Rotory Breather Disc as fitted to 350cc, 500cc & 650cc Unit & Pre-Unit Triumph models and BSA A50 & A65 models up to 1972.
OD: 7/8″ (22.3mm)
Depth: 1/16″ (1.9mm)
MADE IN ENGLAND
OEM: 70-3822, 68-0130, 68-130, 70-3822, E3822 GS87
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