Equip your semi to be Ready for the Road Ahead , with the Denso 12V 9-Tooth Starter Motor, a key device that provides immediate power from a cold engine. Alongside the battery, this replacement starter works to engage the engine flywheel after the press of a button or turn of a key. Manufactured with hardy components to keep each starter at its best for vast periods of time. FleetPride is your First Click in Heavy Duty .