Piston +.010 / Kohler 47 874 03-SPack Size:1Gravely 010957, Gravely 040992, Kohler 47 874 03, Kohler 47 074 13, Kohler 47 874 03-SESF 163-357, Foley/Belsaw 5979728, Foley/PLP 163-357, Green Meadow P357, Laser 94230, NHC 266-8975, Prime Line 7-03812, Rotary 6746, Sunbelt SB-6746Gravely K241, K482 and M10; Kohler K241, K482 and M10Ethanol: Not compatible with greater than 10% ethanol fuel, Cylinder Bore Size: 3.261"