Diaphragm / Briggs & Stratton 272638SPack Size:1Briggs & Stratton 270988, Briggs & Stratton 272638, Briggs & Stratton 272638SESF 116-014, Foley/PLP 116-014, Laser L3320, Laser 98098, NHC 262-5125, Oregon 49-213, Prime Line 7-02104, Rotary 8227, Sunbelt CK-15Briggs & Stratton 400700, 402700, 42A700-42E700, 414700, 402400 and 460700; for L-Head Twin engines and select 8 and 11 HP horizontal engines (fuel pump)Ethanol: Not compatible with greater than 10% ethanol fuel