Product PWC / Jet SkiPiston kit Back 12110-98E51 Piston-1.0For Tiger Shark 640 Item Number: 12110-98E51 Description: Piston-1.0 You May Also Be Interested In 290-887-570 Piston Kit 1.0 For Seadoo 951 13001-3714-02 Piston Kit 0.50 For Kawasaki 09-808-01 Piston Kit For Yamaha VG-686 Top Set Gasket Kit For Yamaha