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 290-887-670-02 Piston Kit 0.50 For Seadoo 720 13001-3731 Piston-0.75 For Kawasaki Ultra 900 810373 Top End Gasket Kit For KTM 90201-08100-00 Washer For Yamaha