Walker Products 250-24745 oxygen sensor for the 2008-2010 Chevrolet Cobalt 4-cylinder 2.0L and other vehicles measures the oxygen content of the exhaust gas. The engine computer uses that reading to track combustion efficiency, and this Walker Products oxygen sensor is a direct-fit unit for the downstream position.
- Narrow-band design with a 4-wire connection
- Electrodes made of a gas-permeable platinum layer
- Electrode coating guards against contamination and erosion from combustion residue and particulates in the exhaust gases
- Oxygen readings help fine-tune the air-fuel mixture for fuel economy
- Monitors exhaust gases to help reduce pollutants
Quick facts
- Part: Walker Products 250-24745 oxygen sensor
- Fits: 2008-2010 Chevrolet Cobalt 4-cylinder 2.0L and other vehicles
- Position: Downstream
- Condition: New
A failing sensor can make the engine run poorly, raise fuel consumption or exhaust emissions, or turn on the malfunction indicator light. The sensor's wiring harness and connector can be behind these signs too, so check them for physical damage with the engine off and find the cause before buying. This listing is one sensor, and the downstream position takes one.
Fits
The vehicles it fits include the 2008-2010 Chevrolet Cobalt 4-cylinder 2.0L, the 2008-2010 Chevrolet HHR 4-cylinder 2.0L and the 2007-2010 Saturn Sky 4-cylinder 2.0L. If your car is not one of these, look for it among the other vehicles in the "Vehicles it fits" section.
Specifications
Fit and size
- Position: Downstream
- Quantity per vehicle: 1
Build and materials
- Type: Narrow-band
- Wires: 4
- Electrodes: 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 250-24745 the right Chevy Cobalt oxygen sensor for a 2008-2010 Chevrolet Cobalt 4-cylinder 2.0L?
Yes. Walker Products 250-24745 fits the 2008-2010 Chevrolet Cobalt 4-cylinder 2.0L as a downstream sensor. Other vehicles are covered too, so check the "Vehicles it fits" section for yours.
Will a Chevy HHR oxygen sensor like this one fit the 2008-2010 Chevrolet HHR 4-cylinder 2.0L?
Yes. Walker Products 250-24745 is a downstream sensor that fits the 2008-2010 Chevrolet HHR 4-cylinder 2.0L, and the 2007-2010 Saturn Sky 4-cylinder 2.0L takes it too.
Is this oxygen sensor narrow-band or wideband?
This oxygen sensor is narrow-band with a 4-wire connection. Its electrodes are made of a gas-permeable platinum layer.
Can a bad oxygen sensor turn on the check engine light?
Yes. A failed sensor might make the engine run poorly, raise fuel consumption or exhaust emissions, or light the malfunction indicator. Newer vehicles store fault codes that a shop can read.
What does the coating on the 250-24745 sensor protect?
The electrodes are made of a gas-permeable platinum layer, and the coating prevents contamination and erosion of the electrode surfaces from combustion residue and particulates in the exhaust gases.
