Oxygen Sensor for 2004-2005 Mazda 3 & More - Walker 250-24661

Walker Products 250-24661 oxygen sensor for the 2004-2005 Mazda 3 4-cylinder 2.0L or 2.3L and other vehicles measures the oxygen left in the exhaust gas. That reading shows how efficiently the engine is burning fuel, and this narrow-band sensor sits downstream.

• Made for its specific application and fitment position, with the diagnostic feedback the ECU requires
• Measures oxygen levels to help fine-tune the air-fuel ratio and support fuel economy
• Monitors exhaust gases to help reduce pollutants
• Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
• Electrodes with a gas-permeable platinum layer

Quick facts

• Part: Walker Products 250-24661 oxygen sensor
• Fits: 2004-2005 Mazda 3 4-cylinder 2.0L or 2.3L and other vehicles
• Position: Downstream
• Condition: New

A failing sensor can show up as rough running, higher fuel consumption, more exhaust emissions or a lit malfunction indicator light, and newer vehicles may store a related fault code. Before replacing it, look over the sensor, wiring harness and connector for physical damage with the engine off and cool.

Fits

This is a direct-fit replacement for the 2004-2005 Mazda 3 4-cylinder 2.0L or 2.3L and the 2006-2007 Mazda 5 4-cylinder 2.3L. This listing is one sensor, and the 2006-2007 Mazda 5 4-cylinder 2.3L takes one in this position.

Specifications

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