Walker Products Oxygen Sensor P/N:250-241256
Walker Products 250-25009 left oxygen sensor for the 1999-2001 Volvo S80 6-cylinder 2.8L and the 1999-2004 S80 6-cylinder 2.9L measures the oxygen in the exhaust gas to show how efficiently the engine is burning fuel. This Walker Products oxygen sensor is a heated wide-band unit made for its specific application and fitment position.
A failing sensor can show up as rough running, higher fuel consumption or emissions, or a lit malfunction indicator light. Before you replace the sensor, rule out physical damage to its wiring harness and connector, which you can inspect by eye.
This oxygen sensor fits the 1999-2001 Volvo S80 6-cylinder 2.8L and the 1999-2004 S80 6-cylinder 2.9L. This listing is one sensor: the 1999-2001 Volvo S80 6-cylinder 2.8L takes two, while the 2000-2004 S80 6-cylinder 2.9L takes one.
Fit and size
Build and materials
Does the Walker Products 250-25009 fit the 1999-2001 Volvo S80 6-cylinder 2.8L?
Yes. Walker Products 250-25009 is the upstream left sensor for the 1999-2001 Volvo S80 6-cylinder 2.8L, and it also fits the 1999-2004 S80 6-cylinder 2.9L.
Is the Walker Products 250-25009 a wide-band oxygen sensor?
Yes. This is a heated wide-band oxygen sensor with 5 wires and 6 spade terminals.
What are the electrodes of this oxygen sensor made with?
The electrodes have a gas-permeable platinum layer. A coating protects the electrode surfaces from combustion residue and particulates in the exhaust gases.
What can a failing upstream left oxygen sensor cause?
A failed sensor can make the engine run poorly, raise fuel consumption or exhaust emissions, or light the malfunction indicator light. Newer vehicles may also store fault codes in the ECU.
How long is the wiring harness on the Walker Products 250-25009?
The wiring harness on Walker Products 250-25009 is 780 mm long. The sensor has a threaded mounting.
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.