Primer Bulb / Briggs & Stratton 694395Pack Size:1Briggs & Stratton 694395, Briggs & Stratton 496115, Briggs & Stratton 4180, Briggs & Stratton 5085H, Briggs & Stratton 5085K, Craftsman SPM685962501Home Depot 279640, Lowe's 219706, Lowe's 317724, NHC 262-4133, Oregon 49-079, Rotary 8959, Stens 120-216, Sunbelt SB8959Briggs & Stratton 122K02, 122K82, 124K02, 12A800, 12F702, 12F707, 12F782, 12G802, 127800, 128800, 129700, 129800 and 135700 series enginesOD: 1 ", Height: 1 ", Ethanol: Not compatible with greater than 10% ethanol fuel