Walker Products Oxygen Sensor P/N:250-241273
Walker Products 250-24290 oxygen sensor for the 2000-2001 Subaru Outback H4 2.5L and other vehicles measures the oxygen content of the exhaust gas. The engine computer uses that reading to track the air-fuel ratio and combustion efficiency.
A rough-running engine, higher fuel use, more exhaust emissions or a lit malfunction indicator light can mean the sensor is worn. The sensor's wiring harness or connector can be behind the same signs, so inspect both for physical damage before replacing the sensor.
This listing is one downstream sensor, and the 2000-2001 Subaru Outback H4 2.5L takes one. It also works as a Subaru Impreza oxygen sensor for the 1999-2001 Impreza H4 2.2L and as a Subaru Legacy oxygen sensor for the 1999 Legacy H4 2.2L and the 2000-2001 Legacy H4 2.5L. Driving something else? Enter your year, make and engine in the "Vehicles it fits" section to see whether this sensor is listed for your car.
Fit and size
Build and materials
Is this the right Subaru Outback oxygen sensor replacement for the 2000-2001 Outback H4 2.5L?
Yes. Walker Products 250-24290 is a downstream oxygen sensor for the 2000-2001 Subaru Outback H4 2.5L, and that Outback takes one.
Does this work as a 2000 Subaru Outback oxygen sensor with the H4 2.5L engine?
Yes. The 2000-2001 Subaru Outback H4 2.5L is listed for this sensor, so a 2000 model with that engine is covered.
What thread size does this Walker Products oxygen sensor have?
Walker Products 250-24290 has an M18 - 1.5 thread and four wires, in a narrow-band design.
What signs can point to a failing downstream oxygen sensor?
A rough-running engine, higher fuel use, more exhaust emissions or a lit malfunction indicator light can be signs of a failing sensor. Newer vehicles also store fault codes in the ECU, and some relate to the sensor.
What does the coating on this oxygen sensor's electrodes protect against?
On Walker Products 250-24290, the coating helps keep combustion residue and particulates in the exhaust gases from contaminating or eroding the electrode surfaces.
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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.