Chrome Piston Ring +.020 / Kohler 235289-SPack Size:1Kohler 235289, Kohler 235289-SESF 163-314, Foley/Belsaw 5979717, Foley/PLP 163-314, Green Meadow R314, Prime Line 7-03770, Rotary 6800, Sunbelt SB-2472, Sunbelt SB-6800Kohler K241Cylinder Diameter: 3.271 ", Ethanol: Not compatible with greater than 10% ethanol fuel