Walker Products 250-25006 oxygen sensor for the 2001-2003 Volvo S60 5-cylinder 2.4L, the 2001-2004 S60 5-cylinder 2.3L, the 2003-2007 S60 5-cylinder 2.5L, the 2005-2009 S60 5-cylinder 2.4L and other vehicles measures the oxygen in the exhaust gas so the engine computer can track combustion efficiency. This Walker Products oxygen sensor is a 5-W wide-band unit that reports the air-fuel ratio to the ECU.
- Monitors exhaust gases to help reduce pollutants
- Electrodes made of a gas-permeable platinum layer
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates in the exhaust gas
- Measures oxygen levels to help fine-tune the air-fuel mixture for fuel economy
- Built for its specific application and position, with the diagnostic feedback the ECU requires
Quick facts
- Part: Walker Products 250-25006 oxygen sensor
- Fits: 2001-2003 Volvo S60 5-cylinder 2.4L, the 2001-2004 S60 5-cylinder 2.3L, the 2003-2007 S60 5-cylinder 2.5L, the 2005-2009 S60 5-cylinder 2.4L and other vehicles
- Position: Upstream, upstream left, upstream right
- Condition: New
A failing sensor can show up as rough running, higher fuel use, higher exhaust emissions or a lit malfunction indicator light, and newer vehicles may store a fault code for it. Before you replace the sensor, rule out damage to its wiring harness and connector, which you can inspect by eye with the engine off and cool.
Fits
The 2000-2003 Volvo V70 5-cylinder 2.4L, the 2000-2004 V70 5-cylinder 2.3L, the 2003-2007 V70 5-cylinder 2.5L and the 2005 V70 5-cylinder 2.4L take this sensor, so it works as a V70 oxygen sensor for each of those runs. The 2003-2007 Volvo XC70 5-cylinder 2.5L takes it too, along with many other vehicles. Owners of a car not named here can search for it in the "Vehicles it fits" section.
Specifications
Fit and size
- Position: Upstream, upstream left, upstream right
- Quantity per application: 1
- Thread size: M18 - 1.5
Build and materials
- Type: 5-W wide-band
- Electrodes: gas-permeable platinum layer
- Condition: New
In the box
One oxygen sensor; the fitment lists one per application.
Frequently Asked Questions
Does this Volvo S60 oxygen sensor fit the 2003-2007 S60 5-cylinder 2.5L?
Yes. Walker Products 250-25006 fits the 2003-2007 Volvo S60 5-cylinder 2.5L. The "Vehicles it fits" section is where to check any other year or engine.
Is this a Volvo XC70 oxygen sensor for the 2003-2007 XC70 5-cylinder 2.5L?
Yes. Walker Products 250-25006 fits the 2003-2007 Volvo XC70 5-cylinder 2.5L, and each application takes one sensor.
What thread size does this 5-W wide-band oxygen sensor have?
This oxygen sensor has an M18 - 1.5 thread. It is a 5-W wide-band type.
What problems can a worn oxygen sensor cause?
A failed sensor can make the engine run poorly, raise fuel use and exhaust emissions, or turn on the malfunction indicator light. A shop can read the stored ECU fault codes to see whether the sensor is involved.
What protects the electrodes on this wide-band oxygen sensor?
The electrodes are made of a gas-permeable platinum layer. A coating keeps combustion residue and particulates in the exhaust gas from contaminating or eroding the electrode surfaces.
