The O'Reilly Auto Parts store #4009 in Whitesboro, Texas offers a wide range of parts, tools, and accessories, as well as convenient services like free battery testing, wiper blade & bulb installation, fluid recycling, and Check Engine light testing. They also resurface brake rotors and drums, and can build custom hydraulic hoses. Customers can take advantage of the free Loaner Tool program as well. While some reviewers have had mixed experiences at this location, with a few stating the store didn't have the specific parts they needed, the majority of customers have been very satisfied. Many praise the knowledgeable and friendly staff, who are always willing to help locate the right parts and provide expert advice. Reviewers highlight the store manager and employees like Ash, Charlie, and Lary for their exceptional customer service. One customer, a former professional mechanic of 50 years, notes that while this particular O'Reilly location hasn't always met their needs, the brand as a whole is usually reliable. Another reviewer had a positive experience getting their engine light issue diagnosed and resolved quickly. Overall, the Whitesboro O'Reilly Auto Parts store #4009 is described as a well-stocked, knowledgeable, and customer-focused location that provides a valuable service to the local community.