Replaces

O2 Oxygen Sensor Walker Products 250-54003 - WKEOS00095

Walker Products Oxygen Sensor: 250-54003

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.

Specifications:

  • Brand New Walker Oxygen Sensor
  • Direct Fit
    • Correct Connector No cutting or splicing
    • Correct wire length (17.75 Inches)
  • Upstream Sensor (Air / Fuel Ratio)
  • 4 wire configuration
  • Replaces dealer part numbers: 8946733030, 89467 33030, 8946741030, 89467 41030, 8946741040, 89467 41040, 8946742020, 89467 42020
  • 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 run poorly or fail an emission test then this is the part for you.

Returns Note:

Our electrical and electronic parts are subject to strict quality control testing.  Once the item has been installed or plugged in, it is no longer eligible for a refund.  The item may be eligible for replacement, only if it is found to have a manufacturing defect. Before purchasing, please ensure proper diagnosis of the failed original part is performed.

Note:  You may be required to reset the vehicle’s computer after installation of this part.

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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Browse 1 question Browse 1 question and 1 answer
Replacing upstream 02 sensor which is also the A/F sensor? would it be wise to change downstream 02 sensor or not
Kathy Z on Apr 16, 2017
BEST ANSWER: In some models, the upstream oxygen sensor is known as the air/fuel ratio sensor. It is not a necessity to replace the downstream, but some like to replace in sets to ensure the system is entirely new.

Vehicle Fit

Year Make Model Description
2000-2001Lexus ES300 Lexus ES300 V6 3.0L Rear Bank Upstream (Air / Fuel Ratio) O2 Oxygen Sensor Walker Products 250-54003
2000-2004Toyota Avalon Toyota Avalon V6 3.0L Front Bank Upstream (Air / Fuel Ratio) O2 Oxygen Sensor Walker Products 250-54003
1997-2000Toyota Camry Toyota Camry V6 3.0L California Emissions Upstream (Air / Fuel Ratio) O2 Oxygen Sensor Walker Products 250-54003
2001Toyota Camry Toyota Camry V6 3.0L Automatic Transmission Upstream (Air / Fuel Ratio) O2 Oxygen Sensor Walker Products 250-54003
2001-2003Toyota Sienna Toyota Sienna V6 3.0L Rear Bank Upstream (Air / Fuel Ratio) O2 Oxygen Sensor Walker Products 250-54003

This part replaces:

  • Walker Products 250-54003
Only 1 left in stock
Part #: WKEOS00095


Order must be placed by 4pm ET

Get it in: 2 - 4 Business Days

Want it sooner? Choose Next Day Air at Checkout

Walker Products
Brand #: 250-54003

How-to Video:

(03:08 min)