New 27-Sprag Yamaha Genuine OEM replacement supercharger clutch for all Yamaha 1.8L Supercharged engines features larger, heavy-duty sprag for greater durability. Includes low-profile, button-head bolts (2) for cam chain guide. Backwards compatible to 6ET-17800-10-00.
2008-2012 engines require updated drive gear 99999-04107-00. All require new OEM oil pump assembly gasket (part# 6S5-13563-00-00).
