Product JET SKIPiston Back Piston-STD POLARIS 780 Brand: OSAKA MARINE Description: POLARIS 780_Piston-STD Bore 0.713 You May Also Be Interested In Piston-STD YAMAHA 1300R Piston-1.0 66E- YAMAHA 800 9630-951-1696 Oil Seal STIHL Top End Set 09-712293