Walker Products 350-34581 oxygen sensor for the 2008-2009 Chevrolet Tahoe V8 4.8L or 6.2L, the 2008-2013 Tahoe V8 6.0L, the 2008-2014 Tahoe V8 5.3L and other vehicles measures the oxygen in the exhaust gas to track combustion efficiency. This Walker Products oxygen sensor is a four-wire, narrow-band design.
- Electrodes made of a gas-permeable platinum layer
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates in the exhaust gases
- Reads the oxygen content of the exhaust gas to monitor the air-fuel ratio for combustion efficiency
- Oxygen readings help fine-tune the air-fuel mixture for fuel economy
- Monitors exhaust gases to help reduce pollutants
Quick facts
- Part: Walker Products 350-34581 oxygen sensor
- Fits: the 2008-2009 Chevrolet Tahoe V8 4.8L or 6.2L, the 2008-2013 Tahoe V8 6.0L, the 2008-2014 Tahoe V8 5.3L and other vehicles
- Position: upstream, upstream left, upstream right, downstream left, downstream right, upstream rear, upstream front
- Condition: New
A failing sensor can make the engine run poorly, raise fuel consumption or turn on the check engine light. Those signs alone do not prove the sensor is at fault, since a vacuum leak can also make an engine run poorly.
Fits
The 2007-2013 Chevy Silverado 1500 V8 4.8L, 5.3L or 6.0L, the 2009-2013 Silverado 1500 V8 6.2L and the 2008-2013 GMC Sierra V8 6.2L are among the many vehicles this oxygen sensor fits, at one per application. This listing is a single sensor.
Specifications
Fit and size
- Position: upstream, upstream left, upstream right, downstream left, downstream right, upstream rear, upstream front
- Quantity per application: 1
- Thread size: M18 - 1.5
Build and materials
- Type: narrow-band, four wires
- Electrodes: gas-permeable platinum layer with a protective coating
- Condition: New
Interchange: CTK-OSGM4007
Frequently Asked Questions
Is this the right GMC Sierra oxygen sensor for the 2008-2013 Sierra V8 6.2L?
Yes, Walker Products 350-34581 fits the 2008-2013 GMC Sierra V8 6.2L. If your truck is not the one named here, look up its year and engine in the "Vehicles it fits" section.
Is this the oxygen sensor for a 2004 Chevy Tahoe V8 5.3L?
Yes, Walker Products 350-34581 fits the 2003-2005 Chevrolet Tahoe V8 5.3L, a range that includes the 2004 model year.
Is this oxygen sensor wideband or narrow-band?
It is a narrow-band sensor with four wires. Its electrodes are a gas-permeable platinum layer with a coating against contamination and erosion.
How can I tell if this oxygen sensor is failing?
A failed sensor can make the engine run poorly, increase fuel consumption or light the check engine light. With the engine off and cool, look over the sensor, wiring harness and connector for physical damage.
Does Walker Products 350-34581 cross to CTK-OSGM4007?
Yes, CTK-OSGM4007 is listed as an interchange number for this oxygen sensor, so you can match it against that number.
