The new, no core OTR 39 Model 12V 11-Tooth Rotatable Flange Gear Reduction Starter ensures Expertise Built In™, as a Model 42 upgrade replacement that is lighter than the 42 series at 30.8 lbs, with the same kilowatt starting power. This OTR gear reduction starter has Over Crank Protection (OCP) and an Integrated Magnetic Switch (IMS). Soldered terminal connections between the OCP, IMS, and solenoid prevent early failure from moisture and corrosion. In addition, the endurance-tested solenoid design ensures peak performance in real-world operating environments. This heavy duty starter has undergone computer-controlled varnish application and curing for deep penetration and reliable, long-lasting engine performance. This heavy duty gear reduction starter features a rotatable mounting flange made to fit multiple applications. OTR heavy duty parts offer the same form, fit, and function as OE. With comprehensive research, independent testing, and continuous product development, OTR heavy duty parts are sure to keep you and your truck safely on the road. In addition to providing the highest quality of heavy duty truck and trailer parts, you can rely on OTR warranties to be comparable or better than OE and top brands. FleetPride is your First Click in Heavy Duty®.