O'Reilly Automotive, Inc., together with its subsidiaries, engages in the retail of automotive aftermarket parts, tools, supplies, equipment, and accessories in the United States. The company provides new and remanufactured automotive hard parts, including alternators, starters, fuel pumps, water pumps, brake system components, batteries, belts, hoses, temperature controls, chassis parts, and engine parts; maintenance items comprising oil, antifreeze products, fluids, filters, wiper blades, lighting products, engine additives, and appearance products; and accessories, such as floor mats, seat covers, and truck accessories. Its stores also offer auto body paint and related materials, automotive tools, and professional service provider service equipment. The company's stores offer do-it-yourself and professional service provider customers a selection of brand name, house brands and private label products for domestic and imported automobiles, vans, and trucks. As of January 19, 2013, it operated 4,000 stores in 42 states. The company was founded in 1957 and is headquartered in Springfield, Missouri.