Replaces

Subaru O2 Oxygen Sensor Walker Products 250-54011 - WKEOS00098

Walker Products Oxygen Sensor: 250-54011

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 (22.25 Inches)
  • Upstream Sensor (Air / Fuel Ratio)
  • 4 wire configuration
  • Replaces dealer part numbers: 36531PLR003, 36531 PLR 003, 22641AA140, 22641 AA140, 22641AA280, 22641 AA280
  • 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.

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. Please keep your invoice for proof of this warranty.

  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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Walker O2 Senor
Great product! Perfect fit! Super fast shipping! I would recommend this O2 sensor. Good quality part!
November 29, 2017
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Vehicle Fit

  • 2003 Subaru Baja H4 2.5L Upstream (Air / Fuel Ratio) O2 Oxygen Sensor Walker Products 250-54011
  • 2004-2006 Subaru Baja H4 2.5L (excluding Turbo Models) Upstream (Air / Fuel Ratio) O2 Oxygen Sensor Walker Products 250-54011
  • 2003 Subaru Forester H4 2.5L Upstream (Air / Fuel Ratio) O2 Oxygen Sensor Walker Products 250-54011
  • 2003-2004 Subaru Impreza H4 2.5L Upstream (Air / Fuel Ratio) O2 Oxygen Sensor Walker Products 250-54011
  • 2003-2004 Subaru Impreza Outback H4 2.5L Upstream (Air / Fuel Ratio) O2 Oxygen Sensor Walker Products 250-54011
  • 2003 Subaru Legacy H4 2.5L Upstream (Air / Fuel Ratio) O2 Oxygen Sensor Walker Products 250-54011
  • 2004 Subaru Legacy H4 2.5L (Engine ID EJ253) Upstream (Air / Fuel Ratio) O2 Oxygen Sensor Walker Products 250-54011
  • 2003-2004 Subaru Outback H4 2.5L Upstream (Air / Fuel Ratio) O2 Oxygen Sensor Walker Products 250-54011

This part replaces:

  • Walker Products 250-54011
Only 2 left in stock
Part #: WKEOS00098

Walker Products
Brand #: 250-54011

How-to Video:

(03:08 min)