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 12110-91B61 Piston-STD For Tiger Shark 1000 12110-91B03 Piston-1.0 For Tiger Shark 900 09-710168B Top End Gasket For Yamaha 09-712142C Top End Gasket Set For Yamaha