Walker Products 350-34446 oxygen sensor for the 2011-2014 Ford F-150 V6 3.7L, the 2011-2017 F-150 V6 3.5L, the 2015-2017 F-150 V6 2.7L or V8 5.0L and other vehicles measures the oxygen left in your exhaust gas. This Walker Products oxygen sensor is a narrow-band downstream unit that reports combustion efficiency to the engine computer.
- Electrodes made of a gas-permeable platinum layer
- Protective coating on the electrodes guards their surfaces against contamination and erosion from combustion residue and particulates in exhaust gas
- Measures oxygen levels to help fine-tune the air-fuel mixture for fuel economy
- Monitors exhaust gases to help reduce pollutants
- Supplies the diagnostic feedback the ECU requires for its mounting position
Quick facts
- Part: Walker Products 350-34446 oxygen sensor
- Fits: 2011-2014 Ford F-150 V6 3.7L, the 2011-2017 F-150 V6 3.5L, the 2015-2017 F-150 V6 2.7L or V8 5.0L and other vehicles
- Position: Downstream (downstream left, right, front or rear, depending on the vehicle)
- Condition: New
A failing sensor can show up as rough running, higher fuel consumption, more exhaust emissions or a lit malfunction indicator light. Those symptoms alone don't prove the sensor is at fault, since a damaged wiring harness or connector can trigger them too. This listing is one sensor; the 2011-2014 Ford F-150 V6 3.7L takes two, and the other listed vehicles take one.
Fits
It is an oxygen sensor for the 2013-2015 Ford Explorer V6 3.5L and the 2011-2012 Ford Escape 4-cylinder 2.5L or V6 3.0L, among many other Ford, Lincoln and Mercury models. If your car isn't named here, run its year, make and model through the "Vehicles it fits" section.
Specifications
Fit and size
- Position: downstream (left, right, front or rear by application)
- Quantity per vehicle: 1, or 2 on the 2011-2014 Ford F-150 V6 3.7L
- Thread size: M18 - 1.5
Build and materials
- Sensor type: narrow-band
- Electrodes: gas-permeable platinum layer
- Condition: new
Interchange: CTK-OSFD4019
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Is this oxygen sensor right for the 2011-2014 Ford F-150 V6 3.7L?
Yes. Walker Products 350-34446 fits the 2011-2014 Ford F-150 V6 3.7L, which takes two, and the 2011-2017 F-150 V6 3.5L. For another vehicle, look up your own car in the "Vehicles it fits" section.
Is the 350-34446 oxygen sensor narrow-band or wideband?
Narrow-band. This Walker Products 350-34446 sensor has an M18 - 1.5 thread.
Is the 350-34446 an upstream or downstream oxygen sensor?
Downstream. This sensor is listed for downstream left, right, front and rear positions, depending on the vehicle.
What symptoms can a worn downstream narrow-band sensor cause?
It can show up as rough running, higher fuel consumption, more exhaust emissions or a lit check engine light. A technician can read the stored fault codes to see which sensor they point to.
Is CTK-OSFD4019 the same sensor as Walker Products 350-34446?
Yes, CTK-OSFD4019 is a cross-reference number for Walker Products 350-34446.
