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 09-826-02 Piston Kit 09-800-04 Gasket 61X-13566-A1 / 61X-13566-A0 Full Gasket Kit 09-711309