Product Jet SkiPiston Back 290-887-670 Piston-0.5 For Seadoo 720 Item Number: 290-887-670 Description: Piston-0.5 You May Also Be Interested In 12110-91B03 Piston-0.5 For Tiger Shark 900 290-887-570 Piston-0.25 For Seadoo 951 09-711259 Full Set Gasket W/ Oil Seals For Ski-Doo 121252-22090 Piston Ring For Yanmar