Products Snowmobile- YamahaPiston Kit Back Piston Kit 09-8064-2 Item number: 09-8064-2 Brand: Yamaha CC: 535 Bore Size: 73.5mm You May Also Be Interested In Piston Kit 09-800-01 Piston Kit 09-826 Battery CTX20L-BS / YTX20L-BS Top End Gasket Kit SM-09508F