Oxygen Sensor for 2005 Subaru Forester & More - Walker 250-54061

Walker Products 250-54061 oxygen sensor for the 2005 Subaru Forester H4 2.5L and other vehicles measures exhaust oxygen to track air-fuel ratio. This upstream wide-band sensor sends the ECU the feedback it needs on combustion efficiency.

• Wide-band air-fuel ratio sensor with 4 wires
• Electrodes made of a gas-permeable platinum layer
• Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
• Monitors exhaust gases to help reduce pollutants
• Made for a specific application and mounting position on the vehicle

Quick facts

• Part: Walker Products 250-54061 oxygen sensor
• Fits: 2005 Subaru Forester H4 2.5L and other vehicles
• Position: Upstream
• Condition: New

A failing sensor can show up as rough running, higher fuel use, more exhaust emissions or a malfunction indicator light. The wiring harness or connector can be behind the same signs, so look both over for physical damage before you condemn the sensor.

Fits

It is listed for a wide range of Subaru and Saab models. Among them, it is an oxygen sensor for the 2005 Subaru Impreza H4 2.5L and the 2005 Subaru Outback H4 2.5L. This listing is one sensor for the upstream position, and the engine takes one there. Open the "Vehicles it fits" section to check your exact model and engine.

Specifications

Product information is for general reference and may contain errors. See our Disclaimer.