Oxygen Sensor for 2009-2013 Mazda 6 - Walker 250-25090

Walker Products 250-25090 oxygen sensor for the 2009-2013 Mazda 6 4-cylinder 2.5L reads the oxygen content of the exhaust gas for the engine computer. This wide-band sensor is built for the upstream position and sends back the diagnostic feedback the ECU requires.

• Monitors exhaust gases to help reduce pollutants
• Determines exhaust oxygen content to track the air-fuel ratio for combustion efficiency
• Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
• Electrodes made of a gas-permeable platinum layer
• Measures oxygen levels so the air-fuel mixture can be fine-tuned, which helps fuel economy

Quick facts

• Part: Walker Products 250-25090 oxygen sensor
• Fits: 2009-2013 Mazda 6 4-cylinder 2.5L
• Position: Upstream
• Condition: New

A failing sensor may show up as rough running, higher fuel consumption or a lit malfunction indicator light, though other faults produce those signs too. With the engine off and cool, look over the sensor, its wiring harness and the connector for physical damage first, since that can point you to the real cause.

Fits

It is a direct-fit oxygen sensor replacement for the 2009-2013 Mazda 6 4-cylinder 2.5L, made for the upstream position. This listing is one sensor, and the engine takes one upstream sensor.

Specifications