Product JET SKIPiston Back Piston-0.5 POLARIS 650 Brand: OSAKA MARINE Description: POLARIS 650_Piston-0.5 Bore 0.65 You May Also Be Interested In Piston-0.75 POLARIS 780 Piston-0.25 HONDA NON TURBO 55-1455 Cylinder Head Gasket Kit 93210-08287-00 O-Ring For Yamaha