O'Reilly Automotive, Inc. is one of the largest American distributors of automotive parts. The products are sold under own brands (BesTest®, BrakeBest®, Cartek®, Import Direct®, MasterPro®, MicroGard®, Murray®, Omnispark®, O'Reilly Auto Parts®, Precision®, Power Torque®, Super Start®, Syntec® and Ultima®) and third-party brands (AC Delco, Armor All, Bosch, Castrol, Dorman, Fel-Pro, Gates Rubber, Lucas Oil, Mobil1, Monroe, Moog, Pennzoil, Prestone, Standard, STP, Turtle Wax, Valvoline, Wagner et Wix). The group's activity is primarily organized around 3 families of products:
- automotive parts: alternator, starters, water pumps, chassis parts, etc.;
- maintenance products: antifreeze, filters, etc.;
- accessories: primarily automotive carpets and seat covers.
At the end of 2022, the products were marketed through a network of 5,971 stores located in the United States (5,929) and Mexico (42).