Oxygen Sensor for 2005 Subaru Forester & More - Walker 350-64037

Walker Products 350-64037 oxygen sensor for the 2005 Subaru Forester H4 2.5L and other vehicles measures the oxygen in the exhaust gas to gauge combustion efficiency. It is an upstream, 4-wire, wide-band air-fuel ratio sensor.

• Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
• Electrodes made of a gas-permeable platinum layer
• Monitors exhaust gases to help reduce pollutants
• Measures oxygen levels so the air-fuel mixture can be fine-tuned for fuel economy
• Made for its specific application and fitment position, with the diagnostic feedback the ECU requires

Quick facts

• Part: Walker Products 350-64037 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 lit malfunction indicator light. Those signs alone do not prove the sensor is the problem, since an exhaust leak can cause some of them too. With the engine off and cool, also look over the sensor wiring and connector for physical damage.

Fits

The 2005 Subaru Forester H4 2.5L, the 2005 Subaru Outback H4 2.5L and the 2005 Subaru Impreza H4 2.5L each take one of these sensors, and so do other vehicles. It is engineered as an Original Equipment replacement for many vehicles worldwide. Open the "Vehicles it fits" section to find your exact model and engine.

Specifications