Product PWC / Jet SkiPiston kit Back 12110-98E51 Piston-0.5 For Tiger Shark 640 Item Number: 12110-98E51 Description: Piston-0.5 You May Also Be Interested In 290-887-060 Piston-1.0 For Seadoo 657 13001-3719-04 Piston-1.0 For Kawasaki 750BP 810593 Top End Gasket Kit For Suzuki 186-0017 Bearing For Yamaha