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 09-807-02 Piston Kit 09-807-04 Full Gasket Kit 09-711181 Full Gasket Kit 09-711162A