Product Jet SkiPiston Back 290-886-270 Piston-0.5 For Seadoo 580/587 Item Number: 290-886-270 Description: Piston-0.5 You May Also Be Interested In 12110-91B03 Piston-0.25 For Tiger Shark 900 290-886-270 Piston-1.0 For Seadoo 580/587 493219 Voltage Regulator For Briggs And Stratton 97095-06016 Bolt For Yamaha