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 290-886-270 Piston-0.75 For Seadoo 580/587 12110-98E51 Piston-0.5 For Tiger Shark 640 VG-1024 Full Set Gasket Kit For Honda 93210-16275-00 O-Ring For Yamaha