Oxygen Sensor for 2005 Mazda 6 - Walker 250-54033

Walker Products 250-54033 oxygen sensor for the 2005 Mazda 6 4-cylinder 2.3L measures the oxygen in the exhaust gas to track combustion efficiency. Walker builds each part number for one application and fitment position, so it gives the ECU the diagnostic feedback it needs.

• Upstream wide-band air-fuel ratio sensor with 4 wires
• 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
• 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 250-54033 oxygen sensor
• Fits: 2005 Mazda 6 4-cylinder 2.3L
• Position: Upstream
• Condition: New

Rough running, higher fuel consumption, more exhaust emissions or a lit malfunction indicator light can mean this sensor is worn, though the wiring harness or connector may be behind them, so look both over for physical damage before you replace the sensor.

Fits

It is a direct-fit oxygen sensor replacement for the 2005 Mazda 6 4-cylinder 2.3L, which takes one at the upstream position. This listing is a single sensor.

Specifications