Oregon 50-655 Tecumseh Carburetor Lawn Mower Replacement Part Oregon 50-655 Replacement Tecumseh Carburetor Fits Tecumseh models HM80 and HM100 Replaces Mfg. No. 5001, 5017, 5097, 5128 & 5165 Replaces Tecumseh 640023, 640051, 640140, 640152A, 640152