Walker Products 250-24354 oxygen sensor for the 2006-2011 Chevrolet HHR 4-cylinder 2.2L or 2.4L and other vehicles measures the oxygen in the exhaust gas to show combustion efficiency. This 4-wire narrow-band sensor sits downstream and gives the ECU the diagnostic feedback it expects.
- Coating protects the electrode surfaces from combustion residue and particulates in the exhaust gases
- Sensor electrodes made of a gas-permeable platinum layer
- Oxygen readings help fine-tune the air-fuel mixture for fuel economy
- Monitors exhaust gases to help reduce pollutants
Quick facts
- Part: Walker Products 250-24354 oxygen sensor
- Fits: 2006-2011 Chevrolet HHR 4-cylinder 2.2L or 2.4L and other vehicles
- Position: Downstream
- Condition: New
A failing oxygen sensor can show up as rough running, higher fuel use or a lit malfunction indicator light, and those signs can have other causes. Before replacing it, look over the sensor, its wiring harness and its connector for physical damage with the engine off and cool; a shop can run any live tests.
Fits
This downstream oxygen sensor is a direct fit for the 2005-2007 Chevrolet Cobalt 4-cylinder 2.0L, the 2005-2010 Cobalt 4-cylinder 2.2L and the 2006-2008 Cobalt 4-cylinder 2.4L. It also works as a Pontiac G5 oxygen sensor on the 2007-2008 G5 4-cylinder 2.4L and the 2007-2009 G5 4-cylinder 2.2L. The 2006-2011 Chevrolet HHR 4-cylinder 2.2L or 2.4L takes one, and this listing is one sensor. For a car not named here, look up your own year and engine in the "Vehicles it fits" section.
Specifications
Fit and size
- Position: Downstream
- Quantity per vehicle: 1
- Thread size: M18 - 1.5
Build and materials
- Type: Narrow-band
- Number of 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 this a Chevy Cobalt oxygen sensor for the 2005-2010 Chevrolet Cobalt 4-cylinder 2.2L?
Yes. Walker Products 250-24354 is listed for the 2005-2010 Chevrolet Cobalt 4-cylinder 2.2L as a downstream sensor, and it also fits the 2005-2007 Cobalt 4-cylinder 2.0L and the 2006-2008 Cobalt 4-cylinder 2.4L.
Does this Chevy HHR oxygen sensor fit the 2006-2011 Chevrolet HHR 4-cylinder 2.4L?
Yes. Walker Products 250-24354 is listed for the 2006-2011 Chevrolet HHR 4-cylinder 2.2L or 2.4L, in the downstream position.
Is this Walker Products oxygen sensor narrow-band or wide-band?
Narrow-band. This oxygen sensor has 4 wires and is made for the downstream position.
How can I tell if this downstream oxygen sensor is going bad?
The engine can run poorly, fuel use can rise or the malfunction indicator light can come on. Newer vehicles also store fault codes for the sensor in the ECU.
What protects the electrodes on this oxygen sensor?
A coating on the electrode surfaces guards against contamination and erosion from combustion residue and particulates in the exhaust gases.
