Walker Products 350-34343 oxygen sensor for the 2006-2007 Chevrolet Trailblazer V8 5.3L or 6.0L and other vehicles measures the oxygen content of the exhaust gas to monitor combustion efficiency. Each part number is made for its specific application and fitment position, and it gives the engine computer the diagnostic feedback it needs.
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates in the exhaust gases
- Measures oxygen levels so the air-fuel mixture can be fine-tuned for fuel economy
- Electrodes made of a gas-permeable platinum layer
- Monitors exhaust gases to help reduce pollutants
- Narrow-band sensor with 4 wires
Quick facts
- Part: Walker Products 350-34343 oxygen sensor
- Fits: 2006-2007 Chevrolet Trailblazer V8 5.3L or 6.0L and other vehicles
- Position: Downstream left, downstream right
- Condition: New
A failing sensor can show up as rough running, higher fuel consumption, more exhaust emissions or a lit malfunction indicator light. Those signs can have other causes, so with the engine off and cool, look over the sensor, wiring harness and connector for physical damage, and have the stored codes read, before you replace the sensor. This listing is one sensor; the fitment lists one per application.
Fits
This direct-fit sensor is listed for a wide range of models from Chevrolet, GMC, Buick, Isuzu and Saab, including the 2006-2007 Chevrolet Trailblazer V8 5.3L or 6.0L, the 2007 Chevrolet Express 1500 V6 4.3L or V8 5.3L and the 2007 GMC Savana 1500 V6 4.3L or V8 5.3L. If your vehicle is something else, open the "Vehicles it fits" section and check your exact model and engine.
Specifications
Fit and size
- Position: downstream left, downstream right
- Quantity per application: 1
- Thread size: M18 - 1.5
- Number of wires: 4
Build and materials
- Type: narrow-band
- Electrodes: gas-permeable platinum layer
- Surface: coating over the electrodes
- Condition: new
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Is this the right Chevrolet Trailblazer oxygen sensor for the 2006-2007 model with a V8 5.3L or 6.0L?
Yes. Walker Products 350-34343 is listed for the 2006-2007 Chevrolet Trailblazer V8 5.3L or 6.0L, in a downstream left or right position, one per application.
Is the Walker Products 350-34343 an upstream or a downstream sensor?
It is a downstream sensor. The catalog lists it for the downstream left or downstream right position.
Is this oxygen sensor narrow-band, and how many wires does it have?
Yes, it is a narrow-band sensor with 4 wires and an M18 - 1.5 thread.
What signs can point to a failing downstream oxygen sensor?
Rough running, higher fuel consumption, more exhaust emissions or a lit malfunction indicator light can come from a failing sensor. A shop can read the stored codes.
What does the coating on this oxygen sensor protect?
On the Walker Products 350-34343, the coating guards the electrode surfaces against contamination and erosion from combustion residue and particulates in the exhaust gases. The electrodes use a gas-permeable platinum layer.
