Products Snowmobile- YamahaPiston Kit Back Piston Kit 09-8064-4 Item number: 09-8064-4 Brand: Yamaha CC: 535 Bore Size: 74mm You May Also Be Interested In Piston Kit 09-813-03 Piston Kit 09-831-01 Piston Kit 09-780 Full Gasket Kit 09-711211