Oxygen Sensor for 2012 Subaru WRX & More - Walker 350-64027

Walker Products 350-64027 oxygen sensor for the 2012 Subaru WRX H4 2.5L and other vehicles measures the oxygen content of the exhaust gas. It is made for its specific application and fitment position and gives the ECU the diagnostic feedback the system needs.

• Wide-band air fuel ratio sensor with 4-wire wiring
• Oxygen readings used to fine-tune the air-fuel mixture and support fuel economy
• Exhaust gas monitoring that helps reduce pollutants
• Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
• Electrodes made of a gas-permeable platinum layer

Quick facts

• Part: Walker Products 350-64027 oxygen sensor
• Fits: 2012 Subaru WRX H4 2.5L and other vehicles
• Position: Upstream
• Condition: New

A failing sensor can show up as rough running, higher fuel consumption, more exhaust emissions or a lit malfunction indicator light, and other faults can look alike. With the engine off and cool, look over the sensor, wiring harness and connector for physical damage, and let a shop read any stored codes before you replace anything.

Fits

This upstream oxygen sensor for the 2008-2014 Subaru Impreza H4 2.5L also fits the 2012 Subaru WRX H4 2.5L and the 2013-2014 Subaru WRX STI H4 2.5L. The quantity is one per car.

Specifications

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