Ensuring Expertise Built In , the new, no core OTR 39 Model 12V 11-Tooth 82° Solenoid Position Gear Reduction Starter is a Model 42 upgrade replacement, weighing 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 help prevent early failure due to moisture and corrosion. In addition, the endurance-tested solenoid design ensures high performance in the real-world operating environment. This heavy duty starter has undergone computer-controlled varnish application and curing to deeply penetrate for reliable and long-lasting performance. This 7.3 KW heavy duty gear reduction starter is designed for diesel engines up to 15L. 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 .