O2 Oxygen Sensor Walker Products 250-24102 - WKEOS00023

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Walker Products Oxygen Sensor: 250-24102

Walker Products, an ISO 9001-2008 / TS16949 certified company, specializes in the manufacturing and distribution of Fuel System Components and Automotive Engine Management products. Walker is committed to meeting or exceeding OEM or equivalent standards and specifications. This effort is backed by Walker's own manufacturing, product management and engineering expertise.


  • Brand New Walker Oxygen Sensor
  • Direct Fit
    • Correct Connector No cutting or splicing
    • Correct wire length (36 Inches)
  • Downstream Sensor
  • 4 wire configuration
  • Replaces dealer part numbers: 226A00W000, 226A0 0W000, 226A00W001, 226A0 0W001, 226A00W002, 226A0 0W002, 226A00W010, 226A0 0W010, 226A00W011, 226A0 0W011, 226A00W012, 226A0 0W012, 226A04S101, 226A0 4S101, 226A04S102, 226A0 4S102, 226A04S103, 226A0 4S103, 226A04S110, 226A0 4S110, 226A04S112, 226A0 4S112, 226A04S113, 226A0 4S113
  • Built and tested to strict quality control standards

Note: For clarification purposes:

  • Upstream location is between the catalytic converter and the engine
  • Downstream location is between the catalytic converter and the tailpipe

If you have a bad O2 sensor causing your vehicle to fail an emission test then this is the part for you.

Install note:

You may be required to reset the vehicle computer after installation of this part.

Our electrical and electronic parts are subject to strict quality testing.

Parts cannot be returned after they have been installed. Contact us with any questions before installing the parts.

Item Condition: New

Attention California Customers:

WARNING:  This product can expose you to chemicals including Lead and Lead Compounds, which are known to the State of California to cause cancer, and birth defects or other reproductive harm.  For more information, go to

Lifetime Warranty

This item is backed by a Limited Lifetime Warranty. In the event this item should fail due to manufacturing defects during intended use, we will exchange the part free of charge (excludes shipping charges) for the original purchaser.

  1. step : Identifying your Oxygen Sensors (0:57)
    • Upstream oxygen sensors are located in between the engine and the catalytic converter
    • Downstream oxygen sensors are located in the catalytic converter or farther away from the engine than the catalytic converter
    • Locate your vehicle's firing order diagram
    • The bank that contains cylinder one is bank one
    • The bank that does not contain cylinder one is bank two, even if it does not contain cylinder two

Tools needed for replacement:

    1A - No Tools Needed

  • No Tools Needed

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Year Make Model Description
1997-2000Infiniti QX4 Infiniti QX4 V6 3.3L Downstream Passenger Side O2 Oxygen Sensor Walker Products 250-24102
1996-2000Nissan Pathfinder Nissan Pathfinder V6 3.3L Downstream Passenger Side O2 Oxygen Sensor Walker Products 250-24102
Only 2 left in stock
Part #: WKEOS00023

Order must be placed by 4pm ET
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Estimated Arrival Cost

Deliveries made to PO Boxes and FPO may take longer. See our Shipping & Delivery for more information.

Get it in: 2 - 4 Business Days

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Walker Products
Brand #: 250-24102

How-to Video:

(03:08 min)