Snowmobile/YamahaYamaha - Snowmobile Piston Kits Back Piston Kit 09-818 Snowmobile Parts & Accessories Type: STD 01 (0.25) 02 (0.50) 03 (0.75) 04 (1.00) Viewer:808 Item No: 09-818 YAMAHA No: 8J0-11631-00-93 CC : 439 Fits: 1978 Yamaha SRX440B 1979 Yamaha SRX440C 1980 Yamaha SRX440D You May Also Be Interested In Piston Kit 09-808 Piston Ring R09-812 Throttle Cable 7080532 Connecting Rod Kit 54-8810-PTO