Bowl Screw Washer Gasket / Briggs & Stratton 221172Pack Size:1Briggs & Stratton 221172, Tecumseh 27110, Tecumseh 27110ANHC 262-6485, Oregon 49-084, Prime Line 7-07776, Ratio Parts 3-044, Sunbelt BR-13, Sunbelt B1BR13Briggs & Stratton 80700 and 81700; Tecumseh H22-H70, HM40-HM70, LAV25-LAV35, V, V40-V100 and VH50-VH70Ethanol: Not compatible with greater than 10% ethanol fuel