Member PWC / Jet SkiPiston kit Back 290-887-300 Piston-0.5 For Seadoo 787 Item Number: 290-887-300 Description: Piston-0.5 You May Also Be Interested In 12110-91B61 Piston-0.25 For Tiger Shark 1000 13001-3714-01 Piston Kit 0.25 For Kawasaki RCO033 (Short) Shock Adapter For Yamaha JOG C3447 Top End Gasket Kit For Polaris