Chrome Piston Ring +.030 / Kohler 48 108 04-SPack Size:1Gravely 012366, Kohler 48 108 04, Kohler 235892, Kohler 48 108 04-SGreen Meadow R318, NHC 266-9434, Prime Line 7-03774, Rotary 6804, Sunbelt SB-6804Gravely K301 and K532, before Serial No. 1730100013; Kohler K301 and K532, before Serial No. 1720100013Cylinder Diameter: 3.405 ", Ethanol: Not compatible with greater than 10% ethanol fuel