Replaces

2003-2010 Mercury Mountaineer UPSTREAM O2 Oxygen Sensor for V6 4.0L ( Walker)

This part replaces:

  • Walker Products 250-24701

  • New

Walker Products Oxygen Sensor: 250-24701

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 or Downstream Sensor
    • as listed per application
  • 4 wire configuration
  • Replaces dealer part numbers: 3S7A9G444CA, 3S7A 9G444 CA,4L3A9G444AA, 4L3A 9G444 AA, 4L3Z9G444AA, 4L3Z 9G444 AA, 96VB9F472BA, 96VB 9F472 BA, XL3F9F472AA, XL3F 9F472 AA, XL3F9F472AA1, XL3F 9F472 AA1, XL3F9F472BA, XL3F 9F472 BA, XL3Z9F472AA, XL3Z 9F472 AA, XL3Z9F472BA, XL3Z 9F472 BA, XL3Z9F472C, XL3Z 9F472 C, XL3Z9F472D, XL3Z 9F472 D, ZZR118861, ZZR1 18861, ZZR218861, ZZR2 18861
  • 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.

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.


Vehicle Fit

  • 2009-2010 Ford E350 Van UPSTREAM O2 Oxygen Sensor for V10 6.8L ( Walker)
  • 2009-2010 Ford E450 Van UPSTREAM O2 Oxygen Sensor for V10 6.8L ( Walker)
  • 2001-2002 Ford Expedition UPSTREAM O2 Oxygen Sensor for V8 5.4L ( Walker)
  • 2005-2008 Ford Expedition UPSTREAM O2 Oxygen Sensor for V8 5.4L ( Walker)
  • 1999-2001 Ford Explorer UPSTREAM O2 Oxygen Sensor for V8 5.0L ( Walker)
  • 1999-2000 Ford Explorer UPSTREAM O2 Oxygen Sensor for V6 4.0L ( 8th Vin Digit X) ( Walker)
  • 1999-2001 Ford Explorer UPSTREAM O2 Oxygen Sensor for V6 4.0L ( 8th Vin Digit E) ( Walker)
  • 2000-2001 Ford Explorer UPSTREAM O2 Oxygen Sensor for V6 4.0L ( 8th Vin Digit K) ( Walker)
  • 2002 Ford Explorer UPSTREAM O2 Oxygen Sensor for V6 4.0L (excluding Flex Fuel) ( Walker)
  • 2004-2010 Ford Explorer UPSTREAM O2 Oxygen Sensor for V8 4.6L ( Walker)
  • 2004-2010 Ford Explorer UPSTREAM O2 Oxygen Sensor for V6 4.0L ( Walker)
  • 2001-2003 Ford Explorer Sport UPSTREAM O2 Oxygen Sensor for V6 4.0L ( Walker)
  • 2001-2010 Ford Explorer Sport Trac UPSTREAM O2 Oxygen Sensor for V6 4.0L ( Walker)
  • 2007-2010 Ford Explorer Sport Trac UPSTREAM O2 Oxygen Sensor for V8 4.6L ( Walker)
  • 2004 Ford F150 Heritage Truck Lightning Upstream O2 Oxygen Sensor for V8 5.4L Supercharged (Walker Products)
  • 2004 Ford F150 Heritage Truck Upstream O2 Oxygen Sensor for V8 5.4L (Walker Products)
  • 2000-2003 Ford F150 Truck Lightning Upstream O2 Oxygen Sensor for V8 5.4L Supercharged (Walker Products)
  • 2001-2003 Ford F150 Truck UPSTREAM O2 Oxygen Sensor for V8 5.4L ( Walker)
  • 2004 Ford F150 Truck UPSTREAM or DOWNSTREAM O2 Oxygen Sensor for V8 5.4L (excluding Heritage Models) ( Walker)
  • 2004 Ford F150 Truck UPSTREAM or DOWNSTREAM O2 Oxygen Sensor for V8 4.6L (excluding Heritage Models) ( Walker)
  • 2005-2008 Ford F150 Truck UPSTREAM or DOWNSTREAM O2 Oxygen Sensor for V8 4.6L ( Walker)
  • 2005-2008 Ford F150 Truck UPSTREAM or DOWNSTREAM O2 Oxygen Sensor for V6 4.2L ( Walker)
  • 2005-2008 Ford F150 Truck UPSTREAM or DOWNSTREAM O2 Oxygen Sensor for V8 5.4L ( Walker)
  • 2004-2007 Ford Freestar UPSTREAM O2 Oxygen Sensor for V6 3.9L ( Walker)
  • 2004-2007 Ford Freestar UPSTREAM O2 Oxygen Sensor for V6 4.2L ( Walker)
  • 2001-2011 Ford Ranger UPSTREAM O2 Oxygen Sensor for V6 4.0L ( Walker)
  • 2001-2011 Ford Ranger UPSTREAM O2 Oxygen Sensor for V6 3.0L ( Walker)
  • 2001-2011 Ford Ranger UPSTREAM O2 Oxygen Sensor for L4 2.3L ( Walker)
  • 1999-2003 Ford Windstar UPSTREAM O2 Oxygen Sensor for V6 3.8L ( Walker)
  • 2006-2008 Lincoln Mark LT UPSTREAM or DOWNSTREAM O2 Oxygen Sensor for V8 5.4L ( Walker)
  • 1998-2001 Lincoln Navigator UPSTREAM O2 Oxygen Sensor for V8 5.4L ( Walker)
  • 2005-2008 Lincoln Navigator UPSTREAM O2 Oxygen Sensor for V8 5.4L ( Walker)
  • 2001-2009 Mazda B2300 Truck UPSTREAM O2 Oxygen Sensor for L4 2.3L ( Walker)
  • 1999-2007 Mazda B3000 Truck UPSTREAM O2 Oxygen Sensor for V6 3.0L ( Walker)
  • 2004-2009 Mazda B4000 Truck UPSTREAM O2 Oxygen Sensor for V6 4.0L ( Walker)
  • 2004-2007 Mercury Monterey UPSTREAM O2 Oxygen Sensor for V6 4.2L ( Walker)
  • 1999-2001 Mercury Mountaineer UPSTREAM O2 Oxygen Sensor for V6 4.0L ( Walker)
  • 1999-2001 Mercury Mountaineer UPSTREAM O2 Oxygen Sensor for V8 5.0L ( Walker)
  • 2003-2010 Mercury Mountaineer UPSTREAM O2 Oxygen Sensor for V6 4.0L ( Walker)
$61.95
Part #: WKEOS00087

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Brand #: 250-24701

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