Oxygen Sensor for 2008-2009 Pontiac G8 - Walker 350-34521

Walker Products 350-34521 oxygen sensor for the 2008-2009 Pontiac G8 V6 3.6L measures the oxygen content of the exhaust gas for the engine computer. It is a 4-wire, narrow-band sensor.

• Reads exhaust oxygen levels so the air-fuel mixture can be fine-tuned, which supports fuel economy
• Monitors exhaust gases to help reduce pollutants
• Coating keeps combustion residue and particulates from contaminating and eroding the electrode surfaces
• Electrodes carry a gas-permeable platinum layer
• Made for its specific application and position on the vehicle, with the diagnostic feedback the ECU requires

Quick facts

• Part: Walker Products 350-34521 oxygen sensor
• Fits: 2008-2009 Pontiac G8 V6 3.6L
• Position: Upstream left, upstream right
• Condition: New

A failing oxygen sensor can show up as rough running, higher fuel use, more exhaust emissions or a lit malfunction indicator light, though a fault elsewhere can look much the same. With the engine off and cool, look over the sensor, its wiring harness and the connector for physical damage. If the sensor is the cause, this one replaces it.

Fits

This Walker Products oxygen sensor is a direct-fit part for the upstream left and upstream right positions on the 2008-2009 Pontiac G8 V6 3.6L. It is sold individually, and the car takes one.

Specifications