2005-2005 Saab 9-2X Upstream O2 Oxygen Sensor (Air / Fuel Ratio) for H4 2.0L Turbo Walker Products 250-54004

Part Details

  • Location: Upstream
  • Part Type: Air / Fuel Ratio

This part replaces:

  • Walker Products 250-54004
  • OE # 22641AA042

  • New

Walker Products Oxygen Sensor: 250-54004

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 (790 mm / 31.1 Inches)
  • Upstream Sensor
  • 4 wire configuration
  • Replaces dealer part number: 22641AA042
  • 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.

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.

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Vehicle Fit

  • 2005 Saab 9-2X Upstream O2 Oxygen Sensor (Air / Fuel Ratio) for H4 2.0L Turbo Walker Products 250-54004
  • 2002-2005 Subaru Impreza WRX Upstream O2 Oxygen Sensor (Air / Fuel Ratio) Walker Products 250-54004
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List: $239.95 Save: $90.00
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Part #: WKEOS00146

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Brand #: 250-54004

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