O'Reilly Auto Parts in San Marcos provides parts, tools, and accessories alongside store services like free battery testing, wiper blade and bulb installation, and Check Engine light testing. The store also resurfaced brake rotors and drums. Reviews consistently highlight exemplary customer service where staff went above and beyond. Customers report being treated with all respect, with employees being very nice, friendly, helpful, efficient, and proactive. Staff resolved problems with defective parts, tested and replaced batteries, helped install purchased parts, and ensured customers got back on the road safely and with peace of mind. This location is commended for fantastic, great service and friendliness, with one reviewer noting it shows exemplary customer service. The team's effort to make sure customers were taken care of in their time of need is repeatedly praised.
While traveling 600 miles from home the Check Engine light came on in my truck. I went to O'Reilly to get it checked. They were very quick and helpful. The problem turned out to be something that would allow me to get safely home before putting in shop.
November 2025
Great store, great prices. Staff is helpful and know what they are doing. Won't go to any other auto parts store.
April 2025
The young guy who helped me gave me a great recommendation for an injector cleaner, which I'm familiar with & have used before. And he was knowledgeable about the work we would be doing on my car.
