Walker Products Oxygen Sensor P/N:350-34039
Walker Products 350-34157 oxygen sensor for the 2006-2015 Mini Cooper 4-cylinder 1.6L and other vehicles reads the oxygen left in the exhaust gas. This downstream Walker Products oxygen sensor gives the ECU the diagnostic feedback its position calls for.
A failing oxygen sensor can show up as rough running, higher fuel use, more exhaust emissions or a lit malfunction indicator light. A damaged wiring harness or connector, an exhaust leak or a misfire can be behind those signs too, so find the cause before buying.
The sensor is listed for a wide range of Mini and Peugeot models, led by the 2006-2015 Mini Cooper 4-cylinder 1.6L, the 2014-2018 Peugeot 208 4-cylinder 1.6L with the 2019 208 3-cylinder 1.2L, and the 2011-2017 Mini Cooper Countryman 4-cylinder 1.6L. If your car is not one of these, look it up in the "Vehicles it fits" section before you order.
Fit and size
Build and materials
This listing is one oxygen sensor, and the car takes a single one in this downstream position.
Interchange: CTK-OSMN4001
This part cross-references / interchanges with the following part numbers:
Is this a Mini Cooper oxygen sensor for 2006-2015 cars with the 4-cylinder 1.6L?
Yes. Walker Products 350-34157 is listed for the 2006-2015 Mini Cooper 4-cylinder 1.6L. For any other car, look it up in the "Vehicles it fits" section.
Will this Peugeot 208 oxygen sensor work on a 2014-2018 car with the 4-cylinder 1.6L?
Yes. Walker Products 350-34157 is listed for the 2014-2018 Peugeot 208 4-cylinder 1.6L and the 2019 208 3-cylinder 1.2L.
Is this oxygen sensor narrow-band or wideband?
It is a narrow-band sensor. This downstream sensor has four wires and an M18 - 1.5 thread.
How does the ECU flag a failing downstream oxygen sensor?
Newer vehicles store fault codes in the ECU, and some relate to the affected sensor and its associated systems. A shop can read those codes.
Does Walker Products 350-34157 interchange with CTK-OSMN4001?
Yes. CTK-OSMN4001 is listed as an interchange number for this oxygen sensor.
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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.