Fits Models: Gravely K301 (before Serial No. 1730100013) and M12 (old style)Kohler K301 (before Serial No. 1730100013) and M12 (old style)
Specifications: Piston Size: 0.01 Piston Size + .010 Ethanol Not compatible with greater than 10% ethanol fuelCylinder Bore Size: 3.385"
Additional Information: Use with 500-827 Piston Rings +.010 500-827 Piston Rings +.010, Included in the 785-392 Overhaul Kit 785-392 Overhaul Kit
