Get your semi Ready for the Road Ahead™ with fast power from a cold engine, with the Delco-Remy 39MT 12V 11-Tooth Starter Motor with OCP. 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®.