Chrome Piston Ring Std / Kohler 48 108 01-SPack Size:1Ariens 20094100, Gravely 012363, Kohler 235889, Kohler 48 108 01, Kohler 48 108 01-SESF 163-302, Foley/Belsaw 5977069, Foley/PLP 163-302, Green Meadow R213, Laser L5609, NHC 266-9147, Oregon 36-032, Prime Line 7-03750, Rotary 2472, Sunbelt SB-2472Gravely K301 and K532, before Serial No. 1730100013; Kohler K301 and K532, before Serial No. 1730100013Cylinder Diameter: 3.375 ", Ethanol: Not compatible with greater than 10% ethanol fuel