Exhaust Valve / Kohler 237672-SPack Size:1Gravely 020176, Kohler 237672, Kohler 237672-SESF 188-203, Foley/PLP 188-203, NHC 266-0191, Prime Line 7-03042, Rotary 8473, Sunbelt KO-8473Gravely K321-K582; Kohler K321-K582, M14 and M16Head Diameter: 1.375 ", Length Diameter: 4.635, Stem Diameter: 0.309", Type: Exhaust, Face Angle Diameter: 45 Degrees, Ethanol: Not compatible with greater than 10% ethanol fuel