Fits Models: Gravely K321 and M14 (old style)Kohler K321 and M14 (old style)
Specifications: Piston Size: 0.02 Piston Size + .020 Ethanol Not compatible with greater than 10% ethanol fuelCylinder Bore Size: 3.520"
Additional Information: Use with 500-777 Piston Rings +.020 500-777 Piston Rings +.020
