Walker Products 350-34303 oxygen sensor for the 2018-2020 Peugeot 3008 4-cylinder 1.6L and other vehicles measures the oxygen in the exhaust gas to show how efficiently the engine burns fuel. This Walker Products oxygen sensor is made for its specific application and fitment position, and it gives the ECU the diagnostic feedback it expects.
A failing sensor can make the engine run poorly, raise fuel consumption or exhaust emissions, or light the malfunction indicator lamp. Before you replace the sensor, rule out physical damage to its wiring harness and connector, and have the stored fault codes read to see which circuit is involved.
The 2018-2020 Peugeot 3008 4-cylinder 1.6L, the 2010-2014 Peugeot 207 4-cylinder 1.6L and the 2004-2011 Saab 9-3 4-cylinder 2.0L are among the vehicles this sensor fits, and it fits many more.
Fit and size
Build and materials
This listing is one oxygen sensor, and the fitment lists one per application.
Is Walker Products 350-34303 the right oxygen sensor for the 2010-2014 Peugeot 207 4-cylinder 1.6L?
Yes. Walker Products 350-34303 fits the 2010-2014 Peugeot 207 4-cylinder 1.6L, with one sensor listed for that application.
Does Walker Products 350-34303 work as an oxygen sensor for the 2004-2011 Saab 9-3 4-cylinder 2.0L?
Yes. Walker Products 350-34303 fits the 2004-2011 Saab 9-3 4-cylinder 2.0L and many other vehicles, so look up your own car on the Buyer's Guide tab.
What thread size and wiring does Walker Products 350-34303 have?
Walker Products 350-34303 has an M18 - 1.5 thread and four wires. It is a narrow-band sensor.
Can a failed narrow-band oxygen sensor turn on the malfunction indicator light?
Yes, it can. Newer vehicles store a fault code in the ECU when a sensor circuit has a problem, and a shop can read that code.
What does the coating on the Walker Products 350-34303 electrodes protect against?
The coating keeps combustion residue and particulates in the exhaust gas from contaminating or eroding the electrode surfaces. The electrodes are made of a gas-permeable platinum layer.
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.
