Walker Products 350-34539 oxygen sensor for the 2004-2008 Ford F-150 V8 4.6L or 5.4L, the 2005-2008 F-150 V6 4.2L and other vehicles measures the oxygen in 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 returns the diagnostic feedback the ECU expects.
- Electrodes with a gas-permeable platinum layer
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates in the exhaust
- Monitors the air-fuel ratio by reading the oxygen content of the exhaust gas
- Narrow-band, 4-wire design with an M18 - 1.5 threaded body
Quick facts
- Part: Walker Products 350-34539 oxygen sensor
- Fits: 2004-2008 Ford F-150 V8 4.6L or 5.4L, the 2005-2008 F-150 V6 4.2L and other vehicles
- Position: Downstream, upstream left, upstream right, downstream left, downstream right
- Condition: New
A failing sensor can make the engine run poorly, raise fuel use and exhaust emissions, or turn on the malfunction indicator light. Those signs alone do not prove the sensor is at fault, since a vacuum leak can also make an engine run poorly. The sensor, its wiring harness and its connector can also be looked over for physical damage.
Fits
Among the many vehicles it fits are the 2004-2008 Ford F-150 V8 4.6L or 5.4L and the 2005-2008 F-150 V6 4.2L. It is also an oxygen sensor for the 2001-2011 Ford Ranger V6 4.0L and the 2006-2008 Ranger V6 3.0L. This listing is one sensor, and the 2004-2008 Ford F-150 V8 4.6L or 5.4L takes one.
Specifications
Fit and size
- Position: Downstream, upstream left, upstream right, downstream left, downstream right
- Quantity per vehicle: 1
- Thread size: M18 - 1.5
- Number of wires: 4
Build and materials
- Type: Narrow-band, direct fit
- Electrodes: gas-permeable platinum layer
- Condition: New
Interchange: CTK-OSFD4011
Frequently Asked Questions
Will this Ford F-150 oxygen sensor fit a 2005-2008 F-150 with the V6 4.2L?
Yes. Walker Products 350-34539 fits the 2005-2008 Ford F-150 V6 4.2L and the 2004-2008 F-150 V8 4.6L or 5.4L. If your vehicle is not named here, look up your year and engine in the "Vehicles it fits" section.
Is there a Ford Explorer oxygen sensor here for a 1999-2002 Explorer with the V6 4.0L?
Yes. Walker Products 350-34539 fits the 1999-2002 Ford Explorer V6 4.0L, and the 1999-2001 Explorer V8 5.0L as well.
Is the Walker Products 350-34539 a narrow-band or a wideband sensor?
It is a narrow-band sensor. It is a 4-wire direct-fit design with an M18 - 1.5 threaded body.
Which symptoms can show up when a narrow-band oxygen sensor fails?
The engine can run poorly, fuel consumption and exhaust emissions can rise, or the malfunction indicator light can come on. Newer vehicles may also store fault codes in the ECU.
Does Walker Products 350-34539 cross-reference to CTK-OSFD4011?
Yes. CTK-OSFD4011 is listed as an interchange number for Walker Products 350-34539.
