Walker 350-341085 oxygen sensor for the 2019-2021 Volkswagen Jetta 4-cylinder 1.4L, the 2022-2026 Jetta 4-cylinder 1.5L and other vehicles measures the oxygen content of the exhaust gas. This Walker oxygen sensor sends the reading to the ECU, which uses it to help fine-tune the air-fuel mixture.
- Narrow-band sensor that monitors the air-fuel ratio for combustion efficiency
- Electrodes with a gas-permeable platinum layer
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates
- Monitors exhaust gases to help reduce pollutants
- Made for its specific application and fitment position, with the diagnostic feedback the ECU requires
Quick facts
- Part: Walker 350-341085 oxygen sensor
- Fits: 2019-2021 Volkswagen Jetta 4-cylinder 1.4L, the 2022-2026 Jetta 4-cylinder 1.5L and other vehicles
- Position: Center, upstream, downstream, upstream left, downstream left, downstream right, upstream front, downstream front, downstream rear (varies by application)
- Condition: New
A failing sensor can show up as rough running, higher fuel use, more exhaust emissions or a check engine light. A damaged wiring harness or connector can be behind the same signs, so look them over for physical damage and find the cause before buying a sensor.
Fits
It is listed for a wide range of Volkswagen, Audi and Porsche models, including the 2019-2021 Volkswagen Golf 4-cylinder 1.4L and the 2022-2026 Audi RS3 5-cylinder 2.5L. If your car is not named here, look it up in the "Vehicles it fits" section.
Specifications
Fit and size
- Position: center, upstream, downstream, upstream left, downstream left, downstream right, upstream front, downstream front, downstream rear
- Quantity per vehicle: varies by application
- Thread size: M18 - 1.5
Build and materials
- Type: narrow-band
- Electrodes: gas-permeable platinum layer
- Electrode coating: protects against combustion residue and particulates
- Condition: New
In the box
One oxygen sensor. The number a vehicle takes varies by application.
Frequently Asked Questions
Is this the right oxygen sensor for a VW Jetta, 2019-2021 4-cylinder 1.4L or 2022-2026 4-cylinder 1.5L?
Yes. Walker 350-341085 is listed for the 2019-2021 Volkswagen Jetta 4-cylinder 1.4L and the 2022-2026 Jetta 4-cylinder 1.5L.
Is this the VW Golf oxygen sensor for a 2019-2021 Golf with the 4-cylinder 1.4L?
Yes. Walker 350-341085 is listed for the 2019-2021 Volkswagen Golf 4-cylinder 1.4L. For other cars, use the "Vehicles it fits" section.
What thread does this Walker O2 sensor use?
This sensor has an M18 - 1.5 thread and is a narrow-band type.
Is the Walker Products oxygen sensor sold as a single sensor?
Yes. This listing is one sensor, and the number a vehicle takes varies by application.
What does the coating on the electrodes of this sensor do?
The electrodes carry a gas-permeable platinum layer. A coating over the electrode surfaces helps keep combustion residue and particulates in the exhaust from contaminating or eroding them.
