Snowmobile/PolarisPolaris - Snowmobile Piston Kits Back Piston Ring R09-703 Snowmobile Parts & Accessories Type: STD 01 (0.25) 02 (0.50) 03 (0.75) 04 (1.00) Viewer:182 Item No: R09-703 Fits with Piston 09-703 Bore Size: 53mm Fits: 1976 Polaris Starfire 250 1976-1978 Polaris TX250 You May Also Be Interested In Piston Ring R09-708 Piston Kit 09-703 Front Brake Cable 29U-26373-00 Power Head Gasket Kit 63P-W0001-00