As of 2015, customers can purchase O'Reilly Auto Parts products through the company's online store at OReillyAuto.com. The store includes a wide variety of automotive product categories, including engines, safety equipment, keyless entry accessories and a large selection of replacement parts.
O'Reilly Auto Parts also offers products that are available only at its online store. Customers making purchases through the O'Reilly Auto Parts online store are required to provide shipping ZIP codes when they are finished. The ZIP codes are used to calculate shipping and sales tax. Customers can also use the website to locate brick and mortar stores near their locations.