HomeEmission Control > SensorsWalker 250-23507 Oxygen Sensor - Downstream
Part #: 250-23507

Walker 250-23507 Oxygen Sensor - Downstream

Walker Products OE, Downstream
3 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, Downstream
Fitment: INFINITI, G20
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Walker 250-23507 Oxygen Sensor for Infiniti G20

The Walker Products OE 250-23507 oxygen sensor is designed specifically for the Infiniti G20, providing precise emission control and engine performance monitoring. This heated oxygen sensor features a threaded mounting type and a radiused polygon female connector for secure and accurate installation.

  • Heated oxygen sensor with 3-wire configuration
  • Specific fit for Infiniti G20 models
  • Threaded mounting with 12.0 mm thread diameter
  • 13.31 inches wiring harness length and 16.85 inches overall length
  • 20 gauge wire for reliable signal transmission
  • Radiused polygon female connector for secure connection

Detailed Product Features and Specifications

The Walker Products OE 250-23507 oxygen sensor is engineered with a 3-wire heated sensor design, which helps the sensor reach operating temperature quickly for accurate oxygen level readings. The wiring harness length measures 13.31 inches, allowing for proper routing and connection within the engine bay. The sensor’s overall length is 16.85 inches, and it features a 12.0 mm threaded mounting type, ensuring compatibility with the Infiniti G20’s exhaust system. The connector is a radiused polygon shape with a female gender, designed to fit securely with the vehicle’s wiring harness. The 20 gauge wire measurement supports consistent electrical performance and durability.

Walker Products OE Brand Line Information

Walker Products OE is a product line focused on providing 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 for the Infiniti G20. The OE line emphasizes precise fitment and reliable performance, making it suitable for emission control applications where accuracy and durability are critical.

Applications and Common Issues Addressed

  • Helps maintain proper air-fuel mixture for efficient combustion
  • Reduces harmful emissions by providing accurate oxygen level data
  • Prevents engine performance issues related to faulty oxygen sensors
  • Resolves check engine light triggers caused by sensor failure
  • Supports optimal fuel economy and engine responsiveness

Installation Notes and Tips

When installing the Walker 250-23507 oxygen sensor on an Infiniti G20, ensure the threaded mounting is properly tightened to 12.0 mm specifications to avoid exhaust leaks. Verify the radiused polygon female connector is securely attached to the vehicle’s wiring harness to maintain signal integrity. It is recommended to inspect the wiring harness for any damage or corrosion before installation. Use appropriate anti-seize compound on the sensor threads if required by the vehicle manufacturer.

Quality Assurance and Warranty

Walker Products OE oxygen sensors are manufactured to meet strict quality standards, ensuring reliable performance and durability. While specific warranty details for part number 250-23507 may vary, Walker typically offers coverage against defects in materials and workmanship. Always refer to the product documentation or manufacturer for exact warranty terms.

BrandWalker
Part Number250-23507
PositionWalker Products OE, Downstream
Connector GenderFemale
Connector ShapeRadiused Polygon
Mounting TypeThreaded
Overall Length16.85
Sensor TypeHeated
Thread Diameter12.0
Universal Or Specific FitSpecific
Wire Gauge Measurement20
Wire Quantity3
Wiring Harness Length13.31

This part fits 3 vehicles. Search below:

YearMakeModelLitersCylindersFuel TypePositionNotes
1996INFINITIG202.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
1995INFINITIG202.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific vehicle models.; Walker Products OE
1994INFINITIG202.0LL4GASDownstreamFits downstream bank 1 sensor 2 on specific 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.