Fuel Cap / Tecumseh 37845Pack Size:1Tecumseh 35355, Tecumseh 37845, Tecumseh 36246, Tecumseh 37844, Tecumseh 740041BDealer Choice 42-1105, ESF 139-707, Foley/Belsaw 5979302, Foley/PLP 139-707, Green Meadow GC114, Laser L3194, Laser 97295, Laser 42579, NHC 264-6051, Oregon 07-314, Prime Line 7-04924, Rotary 8285, Rotary 12056, Sunbelt TE-08, Sunbelt B1TE08Tecumseh Premier series enginesOD: 1 3/4 ", Not compatible with greater than 10% ethanol fuel