O''Reilly Automotive, Inc. is a specialty retailer and supplier of automotive aftermarket parts, tools, supplies, equipment and accessories to both ``do-it-yourself`` customers and professional mechanics or service technicians. O''Reilly stores carry an extensive product line consisting of new and remanufactured automotive hard parts, such as alternators, starters, fuel pumps, water pumps, and brake shoes and pads, maintenance items, such as oil, antifreeze, fluids, engine additives and appearance products, accessories, such as floor mats and seat covers.