Walker Products 250-24676 center oxygen sensor for the 2004-2009 Mazda 3 4-cylinder 2.0L, the 2006-2009 3 4-cylinder 2.3L and other vehicles measures the oxygen content of the exhaust gas. Its readings let the ECU monitor the air-fuel ratio for combustion efficiency.
- Electrodes coated with a gas-permeable platinum layer
- Electrode coating prevents contamination and erosion from combustion residue and particulates in the exhaust gases
- Oxygen readings help fine-tune the air-fuel mixture to support fuel economy
- Monitors exhaust gases to help reduce pollutants
- Built for its specific application and position on the vehicle, with the diagnostic feedback the ECU requires
Quick facts
- Part: Walker Products 250-24676 oxygen sensor
- Fits: 2004-2009 Mazda 3 4-cylinder 2.0L, the 2006-2009 3 4-cylinder 2.3L and other vehicles
- Position: Center, downstream
- Condition: New
A failing oxygen sensor can show up as a poorly running engine, higher fuel consumption, more exhaust emissions or a lit malfunction indicator light. A damaged wiring harness or connector, or an exhaust leak, can produce some of the same signs, so find out what is behind them before you buy a sensor.
Fits
Use it as an oxygen sensor replacement for the 2004-2009 Mazda 3 4-cylinder 2.0L and the 2006-2009 3 4-cylinder 2.3L. It also fits the 2011-2017 Mazda 2 4-cylinder 1.5L and the 2006-2008 Mazda 6 4-cylinder 2.3L; each takes one, and this listing is a single sensor.
Specifications
Fit and size
- Position: center, downstream
- Quantity per vehicle: 1
- Thread size: M18 - 1.5
- Number of wires: 4
Build and materials
- Type: narrow-band
- Condition: new
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Will this work as an oxygen sensor for the 2006-2008 Mazda 6 4-cylinder 2.3L?
Yes. Walker Products 250-24676 fits the 2006-2008 Mazda 6 4-cylinder 2.3L, and that car takes one sensor in the center, downstream position.
Is this the right oxygen sensor for a 2008 Mazda 3 4-cylinder 2.0L or 2.3L?
Yes. Walker Products 250-24676 fits the 2004-2009 Mazda 3 4-cylinder 2.0L and the 2006-2009 3 4-cylinder 2.3L, so 2008 is covered with either engine.
Is this Walker Products oxygen sensor narrow-band?
Yes. This sensor is a narrow-band type with four wires and an M18 - 1.5 thread.
What signs can point to a worn center oxygen sensor?
A failed sensor can make the engine run poorly, raise fuel consumption or exhaust emissions, or turn on the malfunction indicator light. Newer vehicles may also store a fault code related to the sensor.
What does the coating on this oxygen sensor do?
The electrodes are coated with a gas-permeable platinum layer. The coating prevents contamination and erosion of the electrode surfaces by combustion residue and particulates in the exhaust gases.
