Product Jet SkiPiston 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 290-887-300 Piston-1.0 For Seadoo 787 13001-3719-01 Piston-0.25 For Kawasaki 750BP 93507-32031 Ball For Yamaha 808267 Complete Gasket Kit For Honda