Walker Products 250-23023 oxygen sensor for the 1998 Volkswagen Golf 4-cylinder 1.8L and other vehicles measures the oxygen in the exhaust gas to track combustion efficiency. This Walker Products oxygen sensor is built for the upstream position on its specific application and gives the ECU the diagnostic feedback it needs.
- Electrodes with a gas-permeable platinum layer
- Coating protects the electrode surfaces from contamination and erosion by combustion residue and particulates in the exhaust
- Determines the oxygen content of the exhaust gas to monitor the air-fuel ratio for combustion efficiency
- Monitors exhaust gases to help cut pollutants
- Reads oxygen levels so the ECU can fine-tune the air-fuel mixture, which helps fuel economy
Quick facts
- Part: Walker Products 250-23023 oxygen sensor
- Fits: 1998 Volkswagen Golf 4-cylinder 1.8L and other vehicles
- Position: Upstream
- Condition: New
A failing sensor can show up as rough running, higher fuel use, more exhaust emissions or a lit malfunction indicator light. A damaged wiring harness or connector can be behind those signs too, so look both over for damage with the engine off and cool, and find the cause before you buy a sensor.
Fits
As a Passat oxygen sensor it fits the 1991-1993 Volkswagen Passat 4-cylinder 2.0L, and it also fits the 1990-1994 Volkswagen Jetta 4-cylinder 1.8L. The quantity is one per car, and this listing is one sensor. If your car is not one of these, run its year and engine through the "Vehicles it fits" section before you order.
Specifications
Fit and size
- Position: Upstream
- Quantity per vehicle: 1
- Thread size: M18 - 1.5
Build and materials
- Type: Narrow-band
- Condition: New
Product information is for general reference and may contain errors. See our Disclaimer.
Frequently Asked Questions
Are these VW Jetta oxygen sensors right for the 1990-1994 Jetta 4-cylinder 1.8L?
Yes. Walker Products 250-23023 fits the 1990-1994 Volkswagen Jetta 4-cylinder 1.8L as an upstream sensor, and the car takes one.
Is this a VW Golf oxygen sensor for the 1998 Golf 4-cylinder 1.8L?
Yes. Walker Products 250-23023 fits the 1998 Volkswagen Golf 4-cylinder 1.8L in the upstream position, one sensor per car.
Is this oxygen sensor upstream or downstream?
This sensor is for the upstream position. It is a narrow-band type, and the listing is a single sensor.
What thread size does the Walker Products 250-23023 have?
Walker Products 250-23023 has a threaded body with an M18 - 1.5 thread.
What does the coating on this oxygen sensor do?
Combustion residue and exhaust particulates can wear at an oxygen sensor's electrodes. The gas-permeable platinum layer on this Walker Products sensor is there to resist that contamination and erosion.
