HomeEmission Control > SensorsWalker 250-23023 Oxygen Sensor - Upstream
Part #: 250-23023

Walker 250-23023 Oxygen Sensor - Upstream

Walker Products OE, Upstream
⚙️ 38 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Walker Products OE, Upstream
🚗Fitment: Volkswagen, Golf, Jetta, Cabriolet, Fox, Passat, and Corrado
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Overview of Walker 250-23023 Oxygen Sensor for Volkswagen Models

The Walker 250-23023 oxygen sensor is designed specifically for select Volkswagen vehicles, including the Cabriolet, Corrado, Fox, Golf, Jetta, and Passat. This heated oxygen sensor ensures accurate emissions control and optimal engine performance by monitoring exhaust gases precisely.

  • Heated oxygen sensor with 3-wire configuration
  • Specific fit for Volkswagen Cabriolet, Corrado, Fox, Golf, Jetta, and Passat
  • Threaded mounting type with 18.0 mm thread diameter
  • Wiring harness length of 20.39 inches and overall length of 23.94 inches
  • Radiused polygon male connector for secure electrical connection
  • Wire gauge measurement of 20 for reliable signal transmission

Detailed Features and Specifications

This Walker oxygen sensor (part number 250-23023) features a heated sensor type that allows for quicker activation and improved fuel efficiency. The sensor includes a 3-wire setup with a radiused polygon male connector, ensuring a precise and secure fit. The wiring harness length measures 20.39 inches, providing adequate reach for installation in the exhaust system. The threaded mounting type with an 18.0 mm diameter allows for straightforward replacement and compatibility with the specified Volkswagen models. The overall length of 23.94 inches supports proper positioning within the exhaust stream for accurate readings.

Walker Products OE Line Information

The Walker Products OE line focuses on delivering original equipment quality parts that meet or exceed factory specifications. This oxygen sensor is part of that line, ensuring it matches the fit, form, and function required by Volkswagen vehicles. Using a Walker Products OE sensor helps maintain the integrity of the vehicle’s emission control system and supports compliance with environmental standards.

Common Applications and Issues Addressed

  • Restores accurate oxygen level readings for engine control units
  • Helps resolve rough idling and poor fuel economy caused by faulty sensors
  • Reduces emissions by ensuring proper air-fuel mixture adjustments
  • Prevents check engine light triggers related to oxygen sensor faults
  • Supports smooth engine performance and drivability

Installation Notes and Tips

When installing the Walker 250-23023 oxygen sensor, ensure the vehicle is cool to avoid burns. Use appropriate tools to remove the old sensor and avoid damaging the wiring harness or connector. Verify the connector shape and gender match the vehicle’s harness before installation. Thread the sensor carefully to avoid cross-threading and torque to manufacturer specifications. After installation, clear any diagnostic trouble codes and perform a test drive to confirm proper operation.

Quality Assurance and Warranty

Walker oxygen sensors are manufactured to meet strict quality standards and undergo rigorous testing to ensure durability and performance. The 250-23023 sensor is backed by Walker’s quality assurance protocols. Please refer to Walker’s official warranty documentation for specific coverage details.

BrandWalker
Part Number250-23023
PositionWalker Products OE, Upstream
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length23.94
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity3
Wiring Harness Length20.39

This part fits 38 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
1998VolkswagenGolf1.8LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
1998VolkswagenGolf1.8LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
1994VolkswagenJetta1.8LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
1994VolkswagenJetta1.8LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
1993VolkswagenCabriolet1.8LL4GASUpstreamNon California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products OE
1993VolkswagenCabriolet1.8LL4GASUpstreamFor vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products OE
1993VolkswagenCabriolet1.8LL4GASUpstreamUpstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products OE
1993VolkswagenFox1.8LL4GASUpstreamNon California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products OE
1993VolkswagenFox1.8LL4GASUpstreamFor vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products OE
1993VolkswagenFox1.8LL4GASUpstreamUpstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products OE
1993VolkswagenJetta1.8LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
1993VolkswagenJetta1.8LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
1993VolkswagenPassat2.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
1993VolkswagenPassat2.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
1992VolkswagenCabriolet1.8LL4GASUpstreamNon California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products OE
1992VolkswagenCabriolet1.8LL4GASUpstreamFor vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products OE
1992VolkswagenCabriolet1.8LL4GASUpstreamUpstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products OE
1992VolkswagenFox1.8LL4GASUpstreamNon California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products OE
1992VolkswagenFox1.8LL4GASUpstreamFor vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products OE
1992VolkswagenFox1.8LL4GASUpstreamUpstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products OE
1992VolkswagenJetta1.8LL4UpstreamB1S1; OE Base Sensor
1992VolkswagenPassat2.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
1992VolkswagenPassat2.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
1991VolkswagenCabriolet1.8LL4GASUpstreamNon California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products OE
1991VolkswagenCabriolet1.8LL4GASUpstreamFor vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products OE
1991VolkswagenCabriolet1.8LL4GASUpstreamUpstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products OE
1991VolkswagenFox1.8LL4GASUpstreamNon California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products OE
1991VolkswagenFox1.8LL4GASUpstreamFor vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products OE
1991VolkswagenFox1.8LL4GASUpstreamUpstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products OE
1991VolkswagenJetta1.8LL4UpstreamB1S1; OE Base Sensor
1991VolkswagenPassat2.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
1991VolkswagenPassat2.0LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
1990VolkswagenCabriolet1.8LL4GASUpstreamNon California emissions certified; Bank 1 Sensor 1; Upstream position; Not suitable for California emissionscertified vehicles; Walker Products OE
1990VolkswagenCabriolet1.8LL4GASUpstreamFor vehicles without California and Federal Emissions - Upstream Bank 1 Sensor 1.; Walker Products OE
1990VolkswagenCabriolet1.8LL4GASUpstreamUpstream oxygen sensor for bank 1 sensor 1 incompatible with California-ESV vehicles.; Walker Products OE
1990VolkswagenCorrado1.8LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
1990VolkswagenCorrado1.8LL4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
1990VolkswagenJetta1.8LL4UpstreamB1S1; OE Base Sensor

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.