Piston +.030 / Kohler 47 874 10-SPack Size:1Kohler 47 874 10, Kohler 47 074 05, Kohler 47 074 20, Kohler 47 874 10-SESF 163-363, Foley/Belsaw 5979733, Foley/PLP 163-363, Green Meadow P363, NHC 266-8144, Prime Line 7-03818, Ratio Parts 014-091, Rotary 6752, Sunbelt SB-6752Kohler K301 and M12, use before Serial No. 1730100013Ethanol: Not compatible with greater than 10% ethanol fuel, Cylinder Bore Size: 3.405"