Walker Products 350-34207 oxygen sensor for the 2009-2010 Volkswagen Jetta 4-cylinder 1.8L and other vehicles measures the oxygen in the exhaust gas to show how efficiently the engine is burning fuel. Made for a specific application and fitment position, it gives the ECU the diagnostic feedback it needs.
- Measures the oxygen content of the exhaust gas to monitor the air-fuel ratio for combustion efficiency
- Monitors exhaust gases to help reduce pollutants
- Measures oxygen levels so the air-fuel mixture can be fine-tuned for fuel economy
- Electrodes coated with a gas-permeable platinum layer
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates in the exhaust
Quick facts
- Part: Walker Products 350-34207 oxygen sensor
- Fits: 2009-2010 Volkswagen Jetta 4-cylinder 1.8L and other vehicles
- Position: Upstream, downstream, downstream left, downstream right
- Condition: New
A worn oxygen sensor can show up as rough running, higher fuel consumption, more exhaust emissions or a lit malfunction indicator light. Those signs alone do not prove the sensor is the problem, because a damaged wiring harness or connector can look the same from the driver's seat, so look those over for physical damage too.
Fits
This oxygen sensor is listed for a wide range of Volkswagen and Audi models, led by the 2011-2012 Volkswagen Clasico 4-cylinder 1.8L, the 2004-2006 Audi A8 Quattro V8 4.2L and the 2005-2009 A8 Quattro W12 6.0L. If your car is not named here, open the "Vehicles it fits" section and check your exact model and engine.
Specifications
Fit and size
- Position: upstream, downstream, downstream left, downstream right
- Thread size: M18 - 1.5
- Quantity per application: 1
Build and materials
- Type: narrow-band
- Electrode coating: gas-permeable platinum layer
- Condition: New
In the box
One oxygen sensor. The fitment calls for one per application.
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Will this oxygen sensor work on a 2009-2010 VW Jetta 4-cylinder 1.8L?
Yes. Walker Products 350-34207 is listed for the 2009-2010 Volkswagen Jetta 4-cylinder 1.8L, and the fitment calls for one sensor per application.
Is Walker Products 350-34207 an upstream or downstream oxygen sensor?
Walker Products 350-34207 is listed for the upstream, downstream, downstream left and downstream right positions. The Position line on this page gives the same four.
What thread size does the 350-34207 oxygen sensor have?
This oxygen sensor has M18 - 1.5 threads and is a narrow-band type, which helps when you compare it with the sensor you are replacing.
What does the platinum coating on this oxygen sensor do?
The electrodes are coated with a gas-permeable platinum layer. That coating prevents contamination and erosion of the electrode surfaces by combustion residue and particulates in the exhaust gas.
Can I keep driving with a failing oxygen sensor?
Have it checked promptly rather than driving on it. Newer vehicles store fault codes, and a shop can read them to see which sensor or circuit is involved.
