Rear Oxygen Sensor for 2003-2005 Mazda 6 & More - Walker 250-24475

Walker Products 250-24475 rear oxygen sensor for the 2003-2005 Mazda 6 4-cylinder 2.3L and other vehicles measures the oxygen in the exhaust gas. This Walker Products oxygen sensor is made for its specific application and fitment position, and it sends the ECU the diagnostic feedback it needs.

• Monitors exhaust gases to help reduce pollutants
• Coating protects the electrode surfaces from combustion residue and particulates in the exhaust gas
• Measures oxygen levels so the air-fuel mixture can be fine-tuned, which supports fuel economy
• Electrodes coated with a gas-permeable platinum layer

Quick facts

• Part: Walker Products 250-24475 oxygen sensor
• Fits: 2003-2005 Mazda 6 4-cylinder 2.3L and other vehicles
• Position: Upstream, upstream rear
• Condition: New

A failing sensor can show up as an engine that runs poorly, higher fuel use or more exhaust emissions. Those signs have other possible sources, so look over the sensor, wiring harness and connector for physical damage with the engine off and cool before you replace anything. Damage there can also shorten a sensor's life.

Fits

This sensor fits the 2003-2005 Mazda 6 4-cylinder 2.3L. It is also an oxygen sensor for the 2001-2002 Mazda Millenia V6 2.5L. Both cars take one sensor, and this listing is one.

Specifications