HomeWalker 250-21027 Oxygen Sensor - Upstream
Part #: 250-21027

Walker 250-21027 Oxygen Sensor - Upstream

Walker Products OE, Upstream
4 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Walker Products OE, Upstream
Fitment: Volkswagen, Vanagon
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Overview of Walker 250-21027 Oxygen Sensor for Volkswagen Vanagon

The Walker 250-21027 oxygen sensor is designed specifically for Volkswagen Vanagon models, ensuring precise emission control and optimal engine performance. This non-heated oxygen sensor features a threaded mounting type and a radiused polygon female connector for secure installation.

  • Wiring harness length: 28.27 inches
  • Wire gauge measurement: 20 gauge
  • Sensor type: Non heated
  • Wire quantity: 1
  • Connector shape: Radiused polygon
  • Connector gender: Female
  • Thread diameter: 18.0 mm
  • Overall length: 31.81 inches
  • Mounting type: Threaded

Walker Products OE Brand Line Details

This oxygen sensor is part of the Walker Products OE line, which focuses on providing original equipment quality parts designed to meet or exceed factory specifications. The Walker Products OE line ensures compatibility and reliable performance for emission control components like oxygen sensors, making it a suitable replacement for Volkswagen Vanagon vehicles requiring precise sensor fitment.

Product Description and Specifications

The Walker 250-21027 oxygen sensor is engineered as a specific fit for Volkswagen Vanagon models, featuring a non-heated sensor element that monitors exhaust gases to optimize fuel mixture and reduce emissions. The sensor includes a 28.27-inch wiring harness with a 20-gauge wire, providing adequate length and durability for installation. Its radiused polygon female connector ensures a secure electrical connection, while the 18.0 mm threaded mounting allows for straightforward replacement in the exhaust system. The overall length of 31.81 inches accommodates proper positioning within the vehicle’s emission control system.

Common Applications and Issues Addressed

  • Helps maintain proper air-fuel ratio for efficient combustion
  • Reduces harmful emissions by providing accurate oxygen level readings
  • Prevents engine performance issues related to faulty sensors
  • Addresses check engine light triggers related to oxygen sensor faults
  • Supports smooth engine idling and acceleration in Volkswagen Vanagon

Installation Notes and Tips

When installing the Walker 250-21027 oxygen sensor, ensure the threaded mounting hole is clean and free of debris. Use appropriate anti-seize compound on the threads to prevent seizing during future removal. Verify the connector matches the vehicle’s wiring harness to avoid electrical issues. Due to the specific fitment for Volkswagen Vanagon models, confirm compatibility before installation.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet original equipment standards, providing reliable performance and durability. While specific warranty details for part number 250-21027 may vary, Walker typically offers coverage against defects in materials and workmanship. Refer to product documentation or manufacturer resources for exact warranty terms.

BrandWalker
Part Number250-21027
PositionWalker Products OE, Upstream
Connector GenderFemale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length31.81
Sensor TypeNon Heated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity1
Wiring Harness Length28.27

This part fits 4 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
1985VolkswagenVanagon1.9LH4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
1985VolkswagenVanagon1.9LH4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE
1984VolkswagenVanagon1.9LH4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
1984VolkswagenVanagon1.9LH4GASUpstreamFront oxygen sensor compatible with various vehicle models.; Walker Products OE

* 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.