Exhaust Valve / Briggs & Stratton 211119SPack Size:1Briggs & Stratton 211119, Briggs & Stratton 211119SESF 188-050, Foley/Belsaw 5961508, Foley/PLP 188-050, Green Meadow V16, Laser L5574, Laser 94189, NHC 266-0834, Oregon 36-507, Prime Line 7-03028, Ratio Parts 3-248, Rotary 1508, Sunbelt SB-1508Briggs & Stratton 100200, 130200-130900, 131700 and 135200Head Diameter: 1 ", Length Diameter: 3.863, Stem Diameter: 0.247", Type: Exhaust, Ethanol: Not compatible with greater than 10% ethanol fuel