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 09-813-02 Piston Kit 09-826 Oil Seal Kit 09-55196 Ignition Coil 62T-85520-00