Product SnowmobilePiston Back 09-815-02 Piston Kit For Yamaha 09-815-02 Piston Kit For Yamaha Snowmobile 0.50 Item Number: 09-815-02 (0.50) Description: Piston Kit (Piston + Piston Rings) For Yamaha Snowmobile, oversize 0.50 You May Also Be Interested In 09-713 Piston Kit For Polaris 09-687-03 Piston Kit For Arctic Cat 33126-90 Starter Shaft Lock Washers For Harley Davidson 09-706 Piston Kit For Polaris, Fuji