P311-4FEDFB8 250-24135 New
- Premium Oxygen Sensor
- Upstream From Chassis #409466 , Factory Code 1
- Walker OE
- Walker Premium Oxygen Sensors are 100% OEM Quality. Oxygen Sensors are designed to determine the oxygen concentration in exhaust gas. Walker Oxygen Sensors are precision made for outstanding performance and manufactured to meet or exceed all original equipment specifications and test requirements. These superior sensors feature only the highest quality material available. Replacing an improperly functioning oxygen sensor with a Walker sensor will increase fuel economy, improve engine performance, and produce lower emissions.