Walker Products 350-34377 oxygen sensor for the 1999-2006 Volkswagen Jetta 4-cylinder 2.0L and other vehicles measures the oxygen in the exhaust gas to report combustion efficiency. Each part number is made for a specific application and fitment position, and it returns the diagnostic feedback the ECU expects.
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and exhaust particulates
- Electrodes are made of a gas-permeable platinum layer
- Oxygen readings help fine-tune the air-fuel mixture to support fuel economy
- Monitors exhaust gases and the air-fuel ratio, which helps reduce pollutants
Quick facts
- Part: Walker Products 350-34377 oxygen sensor
- Fits: 1999-2006 Volkswagen Jetta 4-cylinder 2.0L and other vehicles
- Position: Center, upstream, downstream, upstream left, upstream right, downstream left, downstream right
- Condition: New
Before you replace the O2 sensor on a 1999-2006 VW Jetta 4-cylinder 2.0L, look over its wiring harness and connector for physical damage, and rule that out first. A failing sensor can make the engine run poorly, raise fuel consumption and exhaust emissions, or light the malfunction indicator lamp. A shop can read the stored fault codes.
Fits
The same narrow-band, direct-fit sensor also goes on the 1999-2007 Volkswagen Golf 4-cylinder 2.0L, and the engine-specific list covers more. If your car isn't named here, look up your year and engine in the "Vehicles it fits" section.
Specifications
Fit and size
- Position: center, upstream, downstream, upstream left, upstream right, downstream left, downstream right
- Quantity per application: 1
- Thread: M18 - 1.5
- Number of wires: 4
Build and materials
- Type: narrow-band
- Electrodes: gas-permeable platinum layer
- Electrode surfaces: coated
- Condition: New
In the box
One oxygen sensor. This listing is one sensor, and the 1999-2006 Volkswagen Jetta 4-cylinder 2.0L takes one.
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Will this oxygen sensor fit a 1999-2006 VW Jetta 4-cylinder 2.0L?
Yes. Walker Products 350-34377 fits the 1999-2006 Volkswagen Jetta with the L4-2.0L engine, and the fitment calls for one sensor.
Is this a VW Golf oxygen sensor for the 1999-2007 Golf 4-cylinder 2.0L?
Yes. Walker Products 350-34377 is listed for the 1999-2007 Volkswagen Golf with the L4-2.0L engine, one sensor per application.
Is the 350-34377 a narrow-band or wideband oxygen sensor?
It is a narrow-band sensor with four wires and an M18 - 1.5 threaded body, so it suits applications that call for a narrow-band unit.
What can a failing Walker 350-34377 oxygen sensor do to the engine?
The engine can run poorly, fuel consumption and exhaust emissions can rise, or the malfunction indicator light can come on. A shop can read stored fault codes to see whether the sensor is involved.
What protects the electrodes on this oxygen sensor?
A coating shields the electrode surfaces from combustion residue and particulates in the exhaust, and the electrodes themselves are a gas-permeable platinum layer.
