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 09-808-04 Piston Kit 09-802-03 Piston Kit 09-780-02 Connecting Rod Kit CR2604