Oxygen Sensor for 2004-2009 Mazda 3 - Walker 350-64019

Walker Products 350-64019 oxygen sensor for the 2004-2009 Mazda 3 4-cylinder 2.0L and the 2006-2009 3 4-cylinder 2.3L reads the oxygen content of the exhaust gas so the ECU can track the air-fuel ratio. It is made for its specific application and fitment position and supplies the diagnostic feedback the ECU requires.

• Wide-band 4-W air fuel ratio sensor design
• Electrodes with a gas-permeable platinum layer
• Measures oxygen levels to help fine-tune the air-fuel mixture 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 in the exhaust gases

Quick facts

• Part: Walker Products 350-64019 oxygen sensor
• Fits: 2004-2009 Mazda 3 4-cylinder 2.0L and the 2006-2009 3 4-cylinder 2.3L
• Position: Upstream
• Condition: New

A worn oxygen sensor can show up as rough running, higher fuel consumption, more exhaust emissions or a lit malfunction indicator light. A damaged wiring harness or connector can be behind those signs too, so inspect both for physical damage before you replace the sensor.

Fits

It is an oxygen sensor replacement for the 2004-2009 Mazda 3 4-cylinder 2.0L and the 2006-2009 3 4-cylinder 2.3L, and each engine takes one upstream sensor.

Specifications