Oregon 50-641 Carburetor Lawn Mower Replacement Part Oregon 50-641 Replacement Carburetor Fits models OHV140, OHV170, OHV175, OHV180, OV490 Includes fuel shut off solenoid Replaces Mfg No. 5274 Replaces Tecumseh 640330, 640330A, 640159, 640072A, 640072, 640034A