Walker Products Oxygen Sensor P/N:350-31040
Walker Products 350-34231 oxygen sensor for the 2007-2010 Cadillac STS V8 4.6L and other vehicles measures the oxygen in the exhaust gas. It sends the ECU the diagnostic feedback the system needs.
A failing oxygen sensor can show up as the engine running poorly, higher fuel consumption or a lit malfunction indicator light. A vacuum leak can also make an engine run poorly, so these signs on their own do not prove the sensor is at fault.
It fits the 2007-2010 Cadillac STS V8 4.6L, the 2006-2009 Cadillac XLR V8 4.4L and the 2007-2009 XLR V8 4.6L, and the 2007-2009 Cadillac SRX V8 4.6L. The quantity is one for each of them, and this listing holds one sensor.
Fit and size
Build and materials
Product information is for general reference and may contain errors. See our Disclaimer.
Is this the right oxygen sensor for the 2007-2010 Cadillac STS V8 4.6L?
Yes. Walker Products 350-34231 is a downstream sensor that fits the 2007-2010 Cadillac STS V8 4.6L, and that car takes one.
Is this an oxygen sensor for the 2007-2009 Cadillac SRX V8 4.6L?
Yes. Walker Products 350-34231 is listed for the 2007-2009 Cadillac SRX V8 4.6L, and that car takes one sensor.
What thread size does this Walker Products oxygen sensor have?
This oxygen sensor has an M18 - 1.5 thread.
How do I know if this oxygen sensor is going bad?
The engine can run poorly, fuel use can rise, or the malfunction indicator light can come on. Newer vehicles also store fault codes in the ECU, and some relate to the affected sensor.
Is this a narrow-band oxygen sensor?
Yes. Walker Products 350-34231 is a narrow-band sensor with a gas-permeable platinum layer on its electrodes and a coating against residue and particulates in the exhaust.
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WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.