Dorman Products operates through three primary segments: Light Duty, Heavy Duty, and Specialty Vehicle. The company offers a vast catalog of over 100,000 unique SKUs, including engine components, undercar products, steering and suspension parts, and complex electronic modules. Known for its 'OE FIX' solutions, Dorman engineers products that address known flaws in original manufacturer designs. The company markets its products under well-known brands such as DORMAN, HELP!, and SuperATV. It sells primarily to automotive aftermarket retailers, dealers, and wholesale distributors across the United States and internationally.