O'Reilly Auto Parts store #3639 in San Mateo, California is located at 400 South Norfolk Street. It is described as the best auto parts store, with good and awesome customer service from professional, friendly, knowledgeable, helpful, and patient staff. The store is very clean. It carries the parts, tools, and accessories customers need, offering services like free battery testing, wiper blade and bulb installation, fluid recycling, and Check Engine light testing. It also resurfaced brake rotors and has a free Loaner Tool program. Reviews highlight that the store had the actual part needed for a car more than 30 years old, providing a choice, and staff helped with the installation. The sentiment is that if this store does not have a part, or cannot get it, then a car does not really need it. Customers report that the staff seemed genuinely happy to help. With over 6,000 locations, there is always an O'Reilly Auto Parts nearby.