Walker Products 350-34694 oxygen sensor for the 2007 GMC Sierra V8 5.3L and other vehicles measures the oxygen in the exhaust gas to gauge combustion efficiency. Every part number is made for its specific application and fitment position, and gives the diagnostic feedback the ECU needs.
- Monitors exhaust gases and helps reduce pollutants
- Measures oxygen levels to fine-tune the air-fuel mixture for fuel economy
- Electrodes with a gas-permeable platinum layer
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
- Narrow-band design with four wires
Quick facts
- Part: Walker Products 350-34694 oxygen sensor
- Fits: 2007 GMC Sierra V8 5.3L and other vehicles
- Position: Downstream, upstream left, upstream right, downstream left, downstream right
- Condition: New
A failing sensor can show up as an engine that runs poorly, higher fuel use or a lit malfunction indicator light, though other faults produce similar symptoms. With the engine off and cool, look over the sensor, wiring harness and connector for physical damage before replacing it.
Fits
The 2007 GMC Sierra V8 5.3L, the 2006 Chevrolet Silverado 1500 V8 5.3L and the 2006 Chevrolet Tahoe V8 5.3L all take this oxygen sensor, along with many other Chevrolet and GMC models. Not seeing your truck or van above? Run its year and engine through the "Vehicles it fits" section.
Specifications
Fit and size
- Position: Downstream, upstream left, upstream right, downstream left, downstream right
- Quantity per application: 1
- Thread size: M18 - 1.5
Build and materials
- Sensor type: Narrow-band
- Wires: 4
- Electrodes: gas-permeable platinum layer
- Condition: New
In the box
This listing is one oxygen sensor, and each application in the fitment takes one.
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Will this work as a Chevy Silverado 1500 oxygen sensor on a 2006 Silverado 1500 V8 5.3L?
Yes. Walker Products 350-34694 is listed for the 2006 Chevrolet Silverado 1500 V8 5.3L, one per application. For other years, use the "Vehicles it fits" section.
Is this a Tahoe oxygen sensor for the 2006 Chevrolet Tahoe V8 5.3L?
Yes. Walker Products 350-34694 is listed for the 2006 Chevrolet Tahoe V8 5.3L, and the fitment shows one sensor for it.
How many wires does this Walker Products oxygen sensor have?
Four. This sensor is a narrow-band, 4-wire design with an M18 - 1.5 thread.
What do the electrodes on this oxygen sensor do?
The electrodes have a gas-permeable platinum layer. The coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates in the exhaust gases.
Will a failing oxygen sensor store a fault code?
Yes, it can. Newer vehicles store fault codes in the ECU, and some relate to the affected sensor and its systems.
