Products PWC- Sea Doo951 CC Back Piston 290-887-951DI Type: STD +0.25 +0.50 +0.75 +1.00 Sea Doo 951 DI Piston Item number: 290-887-951DI Bore 88 mm Fit on models: All Sea doo 951 DI You May Also Be Interested In Top End Gasket Kit PWSE-951DI-TG Complete Gasket Kit PWSE-951CW-FU O-Ring 93210-37M25 Piston Kit 09-763-02