Walker Products 250-24951 oxygen sensor for the 2005-2012 Nissan Frontier V6 4.0L, the 2005-2019 Frontier 4-cylinder 2.5L and other vehicles measures the oxygen in the exhaust gas to show how efficiently the engine burns fuel. Every Walker part number is made for its specific application and fitment position, and it gives the ECU the diagnostic feedback the system requires.
- Electrodes with a gas-permeable platinum layer
- Monitors exhaust gases to help reduce pollutants
- Measures oxygen levels so the air-fuel ratio can be fine-tuned, which helps fuel economy
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates in the exhaust gases
- Narrow-band design with 4 wires
Quick facts
- Part: Walker Products 250-24951 oxygen sensor
- Fits: 2005-2012 Nissan Frontier V6 4.0L, the 2005-2019 Frontier 4-cylinder 2.5L and other vehicles
- Position: Downstream, downstream left, downstream right
- Condition: New
A failing sensor can show up as rough running, higher fuel consumption or a malfunction indicator light, and other faults can be behind those signs too. With the engine off and cool, look over the sensor, its wiring harness and the connector for physical damage before you replace it.
Fits
This direct-fit downstream oxygen sensor fits the vehicles named at the top, and also the 2005-2012 Nissan Pathfinder V6 4.0L. It is an oxygen sensor for the 2005 Nissan Xterra 4-cylinder 2.5L and the 2005-2012 Xterra V6 4.0L as well, at one per vehicle. If your vehicle is not named here, look it up by make, model, year and engine in the "Vehicles it fits" section.
Specifications
Fit and size
- Position: downstream, downstream left, downstream right
- Quantity per vehicle: 1
- Thread: M18 - 1.5
Build and materials
- Type: narrow-band, 4 wires, direct fit
- Electrodes: gas-permeable platinum layer
- Condition: new
Frequently Asked Questions
Is this Nissan Pathfinder oxygen sensor right for the 2005-2012 Pathfinder V6 4.0L?
Yes. Walker Products 250-24951 fits the 2005-2012 Nissan Pathfinder V6 4.0L in the downstream position, and that vehicle takes one sensor.
Does this work as a Nissan Frontier oxygen sensor replacement on the 2005-2019 Frontier 4-cylinder 2.5L?
Yes. Walker Products 250-24951 fits the 2005-2019 Nissan Frontier 4-cylinder 2.5L, and the 2005-2012 Frontier V6 4.0L, with one sensor per vehicle.
What type of sensor is the Walker Products 250-24951?
This narrow-band oxygen sensor has 4 wires and an M18 - 1.5 thread. It sits in the downstream position and measures oxygen in the exhaust gas.
Can a failing downstream oxygen sensor hurt fuel economy?
Yes, it can. A failed sensor can make the engine run poorly, raise fuel consumption or light the malfunction indicator light. Newer vehicles store fault codes in the ECU, and a shop can read them.
What protects the electrodes on this Walker Products oxygen sensor from exhaust residue?
A coating on the electrode surfaces prevents contamination and erosion from combustion residue and particulates in the exhaust gases. The electrodes have a gas-permeable platinum layer.
