Your Napa, California O'Reilly Auto Parts store #2566 is located at 2290 Jefferson Street. We carry the parts, tools, and accessories you need, as well as offering Store Services like free battery testing, wiper blade & bulb installation, and Check Engine light testing. This location also makes custom hydraulic hoses for your machinery repairs. Needing a tool? Take advantage of our free Loaner Tool program (refundable deposit required). If you have any questions or don't know where to start on a project, drop by the store and speak with one of our Parts Professionals today. With over 6,000 O'Reilly Auto Parts stores across the US, there's always an O'Reilly Auto Parts near you.