Product PWC / Jet SkiPiston kit Back 290-887-060 Piston-0.5 For Seadoo 657 Item Number: 290-887-060 Description: Piston-0.5 You May Also Be Interested In 12110-98E51 Piston-0.75 For Tiger Shark 640 290-886-270 Piston-0.25 For Seadoo 580/587 290-886-270 Piston-STD For Seadoo 580/587 VG-675 Top End Gasket Kit For Yamaha