Oxygen Sensor for 2006-2013 Mazda 3 & More - Walker 250-25029

Walker Products 250-25029 oxygen sensor for the 2006-2009 Mazda 3 4-cylinder 2.3L, the 2006-2013 3 4-cylinder 2.0L and other vehicles measures the oxygen in the exhaust gas to show how efficiently the engine burns fuel. It is built for its specific application and fitment position and supplies the diagnostic feedback the ECU expects.

• Electrodes with a gas-permeable platinum layer
• Wide-band design that determines the oxygen content of the exhaust gas
• Measures oxygen levels to fine-tune the air-fuel mixture and improve fuel economy
• Monitors exhaust gases to help reduce pollutants
• Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates

Quick facts

• Part: Walker Products 250-25029 oxygen sensor
• Fits: the 2006-2009 Mazda 3 4-cylinder 2.3L, the 2006-2013 3 4-cylinder 2.0L and other vehicles
• Position: Upstream
• Condition: New

An engine that runs poorly, burns more fuel or lights the malfunction indicator lamp can mean this sensor is worn, though damage to the wiring harness or the connector can produce the same signs, so look both over for physical damage before replacing it. Newer vehicles may also store a fault code that points to the sensor.

Fits

This upstream sensor fits the 2006-2009 Mazda 3 4-cylinder 2.3L and the 2006-2013 3 4-cylinder 2.0L, and each of them takes one. It also works as an oxygen sensor for the 2008-2010 Mazda 5 4-cylinder 2.3L, which takes one as well. This listing is a single sensor.

Specifications

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