Oxygen Sensor for 2000-2002 Subaru Forester & More - Walker 250-25161

Walker Products 250-25161 oxygen sensor for the 2000-2002 Subaru Forester H4 2.5L and other vehicles measures combustion efficiency through exhaust oxygen. This Walker Products oxygen sensor is a 5-W wide-band unit made for its specific application and fitment position.

• Measures oxygen levels so the air-fuel mixture can be fine-tuned for fuel economy
• 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
• Monitors exhaust gases to help reduce pollutants

Quick facts

• Part: Walker Products 250-25161 oxygen sensor
• Fits: 2000-2002 Subaru Forester H4 2.5L and other vehicles
• Position: Upstream, upstream left, upstream right
• Condition: New

A failing sensor can show up as rough running, higher fuel consumption, more exhaust emissions or a lit malfunction indicator light. Those signs can mean the sensor is worn, though a damaged wiring harness or connector can be behind them too, so look both over for physical damage first. This listing is one sensor, and the fitment calls for a single sensor per vehicle.

Fits

This wide-band oxygen sensor is a direct-fit replacement for the 2000-2002 Subaru Outback H4 2.5L and the 2000-2002 Subaru Impreza H4 2.5L, and for many other vehicles. It is also listed as an O2 sensor for the 2000-2002 Subaru Forester H4 2.5L. Open the "Vehicles it fits" section to check your exact model and engine.

Specifications