Product JET SKIPiston Back Piston-1.0 YAMAHA 500 Brand: OSAKA MARINE Description: YAMAHA 500_Piston-1.0 Bore-0.72 You May Also Be Interested In 12110-98E51 Piston-0.75 TIGER SHARK 640 Piston-1.0 POLARIS 750 09-704 Piston 810902 Top End Gasket Kit HONDA