Walker Products 250-24384 rear oxygen sensor for the 2009-2010 Chevrolet Optra 4-cylinder 2.0L and other vehicles measures oxygen in the exhaust gas. The Walker Products oxygen sensor is a 4-wire narrow-band unit that gives the engine control unit (ECU) the diagnostic feedback it requires.
- Reads the oxygen content of the exhaust gas to monitor the air-fuel ratio for combustion efficiency
- Electrodes with a gas-permeable platinum layer
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates in the exhaust
- Oxygen readings help fine-tune the air-fuel mixture for fuel economy
- Monitors exhaust gases to help reduce pollutants
- Built for one specific application and mounting position
Quick facts
- Part: Walker Products 250-24384 oxygen sensor
- Fits: 2009-2010 Chevrolet Optra 4-cylinder 2.0L and other vehicles
- Position: Upstream, downstream, upstream rear
- Condition: New
A failing oxygen sensor can make the engine run poorly, raise fuel consumption or exhaust emissions, or turn on the malfunction indicator light, and newer vehicles may store a related fault code. These signs alone do not prove the sensor is the problem; a damaged wiring harness or connector is another common source.
Fits
This direct-fit sensor is listed for a wide range of Chevrolet, Mazda, Kia and Suzuki models, led by the 2009-2010 Chevrolet Optra 4-cylinder 2.0L and the 2003-2008 Mazda 6 V6 3.0L, which take one each, and the 2004-2006 Chevrolet Epica 6-cylinder 2.5L, which takes two.
Specifications
Fit and size
- Position: Upstream, downstream, upstream rear
- Quantity per vehicle: 1 or 2, depending on the vehicle
- Thread: M18 - 1.5
- Number of wires: 4
Build and materials
- Type: Narrow-band, direct fit
- Electrode: gas-permeable platinum layer
- Condition: New
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Is Walker Products 250-24384 the right oxygen sensor for the 2003-2008 Mazda 6 V6 3.0L?
Yes. Walker Products 250-24384 is listed for the 2003-2008 Mazda 6 V6 3.0L, which takes one sensor. For any other car, look up your year, make, model and engine in the "Vehicles it fits" section.
Does this sensor work as an oxygen sensor for the 2009-2010 Chevrolet Optra 4-cylinder 2.0L?
Yes. This sensor is listed for the 2009-2010 Chevrolet Optra 4-cylinder 2.0L, and that car takes one.
Is this a narrow-band or wideband oxygen sensor?
Narrow-band. Walker Products 250-24384 is a 4-wire direct-fit sensor that measures the oxygen content of the exhaust gas to monitor the air-fuel ratio.
What does the platinum layer on this narrow-band oxygen sensor do?
The electrodes are made of a gas-permeable platinum layer. The coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates in the exhaust gases.
Is this oxygen sensor made for a specific position on the car?
Yes. Every Walker Products part number is made for its own application and mounting position, and it gives the diagnostic feedback the ECU requires.
