Dorman Products, Inc. supplies replacement and upgrade parts for passenger cars, light trucks, medium- and heavy-duty trucks, utility terrain vehicles, and all-terrain vehicles in the motor vehicle aftermarket industry in the United States and internationally. It offers engine products, including intake and exhaust manifolds, fans, thermostat housings, and throttle bodies; undercar products comprising fluid lines, fluid reservoirs, connectors, 4-wheel drive components and axles, drain plugs, other engine, and transmission and axle components; steering and suspension products consist of control arms, ball joints, tie-rod ends, brake hardware and hydraulics, wheel and axle hardware, suspension arms, knuckles, links, bushings, and leaf springs, as well as other suspension, steering, and brake components; body products, such as door handles and hinges, window lift motors, window regulators, switches and handles, wiper components, lighting, electrical, and other interior and exterior vehicle body components, including windshields for UTVs; electronics products comprise new and remanufactured modules, clusters and sensors; and hardware products, such as threaded bolts and auto body fasteners, automotive and home electrical wiring components, and other hardware assortments and merchandise. The company also provides air tanks, shock absorbers, and air springs; transmission control modules, variable geometry timing actuators, and other control modules and sensors; new control arms, suspension components, door lock actuators, and handles for electric vehicles; and leaf springs, intake manifolds, exhaust manifolds, window regulators, radiator fan assemblies, tire pressure monitor sensors, exhaust gas recirculation coolers, UTV windshields, and complex electronics modules. It markets its products under the DORMAN, DORMAN OE FIX, HELP!, Conduct-Tite, Dayton Parts, SuperATV, Keller Performance Products, Assault Industries, Gboost, and GDP brands. Dorman Products, Inc. was founded in 1918 and is headquartered in Colmar, Pennsylvania.