All Products SnowmobilePiston Kit Back 09-807 Piston Kit For Yamaha Piston Kit 09-807 Type: Standard (STD) 01 (0.25) 02 (0.50) 03 (0.75) 04 (1.00) Item Number: 09-807 Description: Piston Kit, Bore 66mm You May Also Be Interested In 09-720-04-F Piston Kit (1.00) For Polaris 09-815-01 Piston Kit For Yamaha P400210600217 Top End Gasket Kit For Kymco P400485850114 Complete Gasket Kit For Yamaha Watch Our Product Videos