O'Reilly Automotive Inc. operates as a specialty retailer of automotive aftermarket parts, tools, supplies, equipment, and accessories in the United States. Its stores offer new and remanufactured automotive hard parts, including alternators, starters, fuel pumps, water pumps, brake system components, batteries, belts, hoses, chassis parts, and engine parts; maintenance items, such as oil, antifreeze, fluids, filters, wiper blades, lighting, engine additives, and appearance products; accessories, such as floor mats, seat covers, and truck accessories; and a line of auto body paint and related materials, automotive tools, and professional service equipment. The companys stores sell a selection of brand name and private label products for domestic and imported automobiles, vans, and trucks to do-it-yourself customers and professional installers. As of December 31, 2008, it operated 3,285 stores. The company was founded in 1957 and is headquartered in Springfield, Missouri.