Product PWC / Jet SkiPiston kit Back 290-886-270 Piston-0.25 For Seadoo 580/587 Item Number: 290-886-270 Description: Piston-0.25 You May Also Be Interested In 290-887-060 Piston-1.0 For Seadoo 657 13001-3720 Piston-STD For Kawasaki 900 09-710021X Gasket Set NEK43040004-1C Complete Gasket Kit For Maico