Walker Products 350-34145 left oxygen sensor for the 2001-2002 Chevrolet C3500HD V8 8.1L and other vehicles measures oxygen in the exhaust gas. This Walker Products oxygen sensor is made for its specific application and fitment position, and it gives the ECU the diagnostic feedback it expects.
- Electrodes with a gas-permeable platinum layer
- Oxygen readings help fine-tune the air-fuel mixture for fuel economy
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
- Monitors the air-fuel ratio and exhaust gases to help reduce pollutants
Quick facts
- Part: Walker Products 350-34145 oxygen sensor
- Fits: 2001-2002 Chevrolet C3500HD V8 8.1L and other vehicles
- Position: Downstream left
- Condition: New
A damaged wiring harness or connector can be behind poor running, higher fuel consumption or a lit malfunction indicator light, and so can a failed sensor. Pin down the cause before buying.
Fits
This direct-fit sensor is listed for a wide range of Chevrolet and GMC models, including the 2001-2002 Chevrolet Silverado 2500 HD V8 8.1L and the 2001-2002 Chevrolet Silverado 3500 V8 8.1L. If your vehicle is not named here, look up its year and engine in the "Vehicles it fits" section.
This listing is one sensor for the downstream left position; the 2001-2002 Chevrolet C3500HD V8 8.1L takes one there, and the other side is a separate part.
Specifications
Fit and size
- Position: downstream left
- Quantity for this position: 1
- Number of wires: 4
Build and materials
- Type: narrow-band, direct fit
- Electrodes: gas-permeable platinum layer
- Condition: new
Interchange: CTK-OSGM4017
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Is the Walker Products 350-34145 right for the 2001-2002 Chevrolet Silverado 2500 HD V8 8.1L?
Yes. Walker Products 350-34145 is listed for the 2001-2002 Chevrolet Silverado 2500 HD V8 8.1L as the downstream left oxygen sensor. For another model, look up its year and engine in the "Vehicles it fits" section.
Is this a narrow-band or a wideband oxygen sensor?
It is a narrow-band sensor. Walker Products 350-34145 is a 4-wire narrow-band oxygen sensor made for the downstream left position.
What does the coating on this oxygen sensor's electrodes do?
The coating keeps combustion residue and particulates in the exhaust from contaminating or eroding the electrode surfaces. The electrodes themselves have a gas-permeable platinum layer.
What can a failing downstream left oxygen sensor do?
It can make the engine run poorly, raise fuel consumption or light the malfunction indicator light. With the engine off and cool, you can look the wiring harness and connector over for physical damage.
Does this listing cover the oxygen sensor on both sides?
No. This listing is one downstream left oxygen sensor, and a sensor for the other side is a separate part.
