Update your semi with rapid power from a cold engine, with the Mitsubishi Electric 12V 12-Tooth Starter Motor that ensures you're Ready for the Road Ahead. After the turn of a key or press of a button, this replacement starter works alongside the battery to initiate the engine flywheel. Fashioned with reliable components to keep each starter at its best for extensive periods of time. FleetPride is your First Click in Heavy Duty.