Oxygen Sensor for 2007-2013 Mazda 3 - Walker 250-25067

Walker Products 250-25067 oxygen sensor for the 2007-2013 Mazda 3 4-cylinder 2.3L measures the oxygen in the exhaust gas and sends that reading to the ECU. This upstream Walker Products oxygen sensor is made for its specific application and fitment position, and it provides the diagnostic feedback the ECU requires.

• Coating prevents contamination and erosion of the electrode surfaces by combustion residue and particulates in the exhaust gases
• Determines the oxygen content of the exhaust gas and monitors the air-fuel ratio for combustion efficiency
• Electrodes are coated with a gas-permeable platinum layer
• Monitors exhaust gases and reduces pollutants for a cleaner environment
• Oxygen readings let the air-fuel mixture be fine-tuned to improve fuel economy

Quick facts

• Part: Walker Products 250-25067 oxygen sensor
• Fits: 2007-2013 Mazda 3 4-cylinder 2.3L
• Position: Upstream
• Condition: New

Before you replace this sensor, rule out damage to its wiring harness and connector, since all three should be checked for physical damage. A failing sensor can show up as the engine running poorly, higher fuel consumption, more exhaust emissions or a lit malfunction indicator light.

Fits

This is a direct-fit replacement for the 2007-2013 Mazda 3 4-cylinder 2.3L. The engine takes one upstream sensor, and this listing is one sensor.

Specifications