Walker Products 350-35120 oxygen sensor for the 2009-2010 Ford F-150 V8 4.6L or 5.4L, the 2010 F-150 V8 6.2L and other vehicles measures the oxygen in the exhaust gas to track combustion efficiency. Each part number is made for its application and mounting position, and it sends the diagnostic feedback the ECU needs.
Rough running, higher fuel use, more exhaust emissions or a lit malfunction indicator light can mean the sensor is failing, though other faults can look similar. Before you replace it, look over the sensor, its wiring harness and the connector for physical damage, with the engine off and cool.
It is also an oxygen sensor for the 2009-2011 Ford Expedition V8 5.4L and for the 2012-2014 Hyundai Accent 4-cylinder 1.6L. This listing is one sensor, and each application takes one for its upstream position. If your vehicle is not named here, search for it by year, make, model and engine on the Buyer's Guide tab.
Fit and size
Build and materials
Is this the right Ford F-150 oxygen sensor for a 2009-2010 model with the V8 4.6L or 5.4L engine?
Yes. Walker Products 350-35120 fits the 2009-2010 Ford F-150 V8 4.6L or 5.4L and the 2010 F-150 V8 6.2L, with one sensor per application.
What does this Walker Products oxygen sensor measure?
Walker Products 350-35120 measures the oxygen content of the exhaust gas and monitors the air-fuel ratio, which shows how efficiently the engine is burning fuel.
Is this oxygen sensor wide-band or narrow-band?
This sensor is a wide-band type, listed as 5-W wide-band, with electrodes made of a gas-permeable platinum layer.
Does this oxygen sensor go upstream or downstream?
Upstream. It is listed for the upstream, upstream left or upstream right position, and this listing is one sensor.
What does the ECU record when this oxygen sensor fails?
Newer vehicles store fault codes in the ECU, and some relate to the affected sensor and its associated systems. A shop can read them with a scan tool.
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.
