The MTD 7251651 is a genuine 12-volt, 4-terminal, 10-amp starter solenoid designed for MTD, Cub Cadet, Troy-Bilt, Yard-Man, Yard Machines, Huskee, Bolens, White Outdoor, and Ryobi riding mowers and lawn tractors. This electromagnetic switch connects the battery to the starter motor, activated by the ignition switch. Essential for engine cranking, it replaces faulty solenoids to restore starter motor engagement. It is typically mounted on the mower's frame near the battery.