HomeEmission Control > SensorsWalker 250-23084 Oxygen Sensor - Upstream or Upstream Rear
Part #: 250-23084

Walker 250-23084 Oxygen Sensor - Upstream or Upstream Rear

Walker Products OE, Upstream Rear
8 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 Rear
Fitment: Ford, Mazda, and Kia, Probe, 626, MX-6, and Sportage
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Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker Products OE Oxygen Sensor 250-23084

The Walker Products OE Oxygen Sensor 250-23084 is designed for precise emission control in select Ford, Kia, and Mazda vehicles. This heated oxygen sensor ensures accurate air-fuel mixture readings to support optimal engine performance and emissions compliance.

  • Heated oxygen sensor with 3-wire configuration
  • Specific fit for Ford 626, Mazda MX-6 and Probe, Kia Sportage models
  • 12.13-inch wiring harness length for proper installation
  • Threaded mounting type with 18.0 mm thread diameter
  • Radiused polygon male connector for secure connection
  • 20 gauge wire for reliable signal transmission
  • Overall length of 15.67 inches for correct positioning

Detailed Product Features and Specifications

This oxygen sensor from Walker Products OE features a heated sensor type that allows for faster warm-up times and improved sensor response. The 3-wire design supports both the sensor signal and heater circuit, ensuring consistent operation. The wiring harness length of 12.13 inches and overall length of 15.67 inches provide the necessary reach and fitment for the specified vehicle models. The sensor mounts via a threaded connection with an 18.0 mm diameter, compatible with the original equipment specifications. The radiused polygon male connector ensures a secure and precise electrical connection, reducing the risk of signal loss or corrosion. Wire gauge measurement of 20 supports durability and signal integrity under typical engine bay conditions.

Walker Products OE Brand Line Information

The Walker Products OE line focuses on delivering direct replacement parts that meet original equipment specifications. This oxygen sensor 250-23084 is engineered to match the fit, form, and function of the factory-installed sensor, providing reliable emission control and engine management for Ford, Kia, and Mazda vehicles. The OE line emphasizes quality and compatibility, making it suitable for professional repairs and maintenance.

Compatible Vehicles and Common Applications

  • Ford 626
  • Mazda MX-6
  • Mazda Probe
  • Kia Sportage

This oxygen sensor is specifically designed for these models, ensuring proper fitment and performance without modification.

Common Issues Addressed by Oxygen Sensor 250-23084

  • Check engine light triggered by faulty oxygen sensor readings
  • Poor fuel economy due to incorrect air-fuel mixture
  • Increased emissions and failed emissions tests
  • Engine hesitation or rough idle caused by sensor malfunction
  • Reduced engine performance and drivability issues

Installation Notes and Tips

When installing the Walker Products OE oxygen sensor 250-23084, ensure the engine is cool to avoid burns. Use the correct socket size for the 18.0 mm threaded sensor to prevent damage. Verify the connector shape and gender match the vehicle harness before installation. Avoid twisting or stretching the wiring harness beyond its 12.13-inch length to maintain sensor integrity. It is recommended to apply anti-seize compound on the threads if not pre-applied to facilitate future removal.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet or exceed original equipment standards. This part undergoes rigorous testing to ensure durability and accurate sensor performance. While specific warranty details are not provided here, Walker typically offers limited warranties covering defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.

BrandWalker
Part Number250-23084
PositionWalker Products OE, Upstream Rear
Connector GenderMale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length15.67
Sensor TypeHeated
Thread Diameter18.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity3
Wiring Harness Length12.13

This part fits 8 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
1997FordProbe2.5LV6GASUpstream RearUpstream oxygen sensor for rear exhaust system.; Walker Products OE
1997Mazda6262.5LV6GASUpstream RearUpstream oxygen sensor for rear exhaust system.; Walker Products OE
1997MazdaMX-62.5LV6GASUpstream RearUpstream oxygen sensor for rear exhaust system.; Walker Products OE
1996FordProbe2.5LV6GASUpstream RearUpstream oxygen sensor for rear exhaust system.; Walker Products OE
1996Mazda6262.5LV6GASUpstream RearUpstream oxygen sensor for rear exhaust system.; Walker Products OE
1996MazdaMX-62.5LV6GASUpstream RearUpstream oxygen sensor for rear exhaust system.; Walker Products OE
1995KiaSportage2.0LL4GASUpstreamBank 1 Sensor 1 needs an upstream oxygen sensor.; Walker Products OE
1995KiaSportage2.0LL4GASUpstreamFront 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.