Products Snowmobile- YamahaPiston Kit Back Piston Kit 09-8064-1 Item number: 09-8064-1 Brand: Yamaha CC: 535 Bore Size: 73.25mm You May Also Be Interested In Piston Kit 09-808-04 Piston Kit 09-802-01 Full Gasket Kit 09-711231 Piston Kit 09-781-04