Dorman Products, Inc. (Dorman) is a supplier of replacement parts and fasteners for passenger cars, light trucks, and heavy duty trucks in the automotive aftermarket. The Company distributes and markets approximately 150,000 various stock keeping units (SKU's) of automotive replacement parts and fasteners. The Company groups its products into approximately four classes, such as power-train, including intake and exhaust manifolds, and harmonic balancers; automotive body, including window lift motors and window regulators; chassis, including suspension arms and knuckles, and hardware, including threaded bolts. Dorman parts are marketed under the OE Solutions, HELP!, TECHoice, AutoGrade, Conduct-Tite, FirstStop and HD Solutions brand names. A majority of the Company's products are sold under brands that it owns.