E E.
11/28/2025
I had to quickly head to O'Reilly's Auto Store, Union City, to replace my auto headlamp. Store Manager, Royel, assisted me. I asked him to verify the part number before its replacement, explained...
O'Reilly Auto Parts
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1601 Decoto Rd
Union City, CA 94587
Your UNION CITY CA O'Reilly Auto Parts store is one of over 5,000 O'Reilly Auto Parts stores throughout the U.S. We carry all the parts, tools and accessories you need, as well as offering free Store Services like battery testing, wiper blade & bulb installation, check engine light testing and more. Need help? Stop by and talk to one of our Parts Professionals today. O'Reilly Auto Parts: Better Parts, Better Prices, Every Day!
Reviews
3.531 reviews
Alexis M.
12/4/2025
I came to this location to purchase/get a headlamp replaced. Neither of the employees on staff knew how to do it so they suggested I come back the next day. I called before coming the next day and...
Anthony L.
9/25/2024
It was OK that the employee showed me and found what was wrong with my car after the engine check.
Wendy K.
12/21/2020
The cashier was quite helpful in determining the item I needed. The prices were reasonable and service was quick. If the item doesn't work, I am allowed to return with my receipt. Here's What I...
K T.
5/20/2024
Jay & Andru helped me so much. I needed an alternator but didn't know all the details needed. I gave them my license plate and they helped me find the part. Once my mechanic tried to replace the...
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