Dorman Products, Inc. supplies automotive replacement parts, fasteners, and service line products primarily for the automotive aftermarket and mass merchandise markets. The company offers approximately 133,000 products comprising original equipment dealer parts, which include intake manifolds, exhaust manifolds, oil cooler lines, window regulators, radiator fan assemblies, power steering pulleys, and harmonic balancers; and replacement parts, such as window handles, switches, door hardware, interior trim parts, headlamp aiming screws and retainer rings, radiator parts, battery hold-down bolts and repair kits, valve train parts, power steering filler caps, mass air flow sensors, belt tensioners, and idler pulleys. It also provides application specific and general automotive hardware, such as body hardware, general automotive fasteners, oil drain plugs, and wheel hardware; a selection of electrical connectors, wires, tools, testers, and accessories; and a line of home hardware and home organization products designed for retail merchandisers. In addition, the company offers a brake and clutch program; remanufactured automotive replacement parts, such as transfer case modules and instrument clusters; and heavy duty aftermarket parts for class 4-8 heavy vehicles, including coolant tubes, door handles and other body parts, fluid reservoirs, headlights and lighting, hood components, window regulators, and wiper transmissions. It sells its products under the OE Solutions, HELP!, TECHoice, AutoGrade, Conduct-Tite!, FirstStop, Symmetry, Renew, and HD Solutions brand names through automotive aftermarket retailers; national, regional, and local warehouse distributors; specialty markets; and salvage yards in the United States, Canada, Europe, Mexico, the Middle East, and Asia. The company was formerly known as R&B, Inc. Dorman Products, Inc. was founded in 1978 and is headquartered in Colmar, Pennsylvania.