Product Jet SkiPiston 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 12110-98E51 Piston-STD For Tiger Shark 640 64X-11636-00 Piston Kit 0.50 For Yamaha 46-43024A7 Water Pump Repair Kit For Mercury VG-535 Top Set Gasket Kit For Honda