Replaces

2004-2009 Kia Spectra Upstream O2 Oxygen Sensor for L4 2.0L (Walker Products)

This part replaces:

  • Walker Products 250-25012

  • New

Walker Products Oxygen Sensor: 250-25012

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 (21.65 Inches)
  • Upstream Sensor
    • Wideband
  • 5 wire configuration
  • Replaces dealer part numbers: 3921023700, 39210 23700, 3921023900, 39210 23900
  • 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.

  1. Removing the Engine Cover (0:38 in the video)
    • Remove the four 10mm bolts from the engine cover
    • Pull off the engine cover
  2. Removing the Heat Shield (0:58 in the video)
    • Remove the two 12mm bolts from the heat shield
    • Unclip the oxygen sensor wiring harness from the heat shield
    • Disconnect the oxygen sensor wiring harness
    • Pull off the heat shield around the oxygen sensor wire
  3. Removing the Oxygen Sensor (2:12 in the video)
    • Remove the oxygen sensor with an oxygen sensor socket and ratchet
  4. Installing the New Oxygen Sensor (3:04 in the video)
    • Put the new oxygen sensor into place
    • Tighten the oxygen sensor with the oxygen sensor socket and ratchet
  5. Reinstalling the Heat Shield (3:50 in the video)
    • Put the heat shield into place, pulling the oxygen sensor wire through its cavity
    • Insert the two 12mm bolts into the heat shield
    • Connect the oxygen sensor wiring harness
    • Clip the wiring harness to the heat shield
  6. Reinstalling the Engine Cover (4:23 in the video)
    • Put the engine cover into place
    • Insert the four 10mm bolts into the engine cover

Tools needed for replacement:

    Ratchets & Related

  • Socket Extensions

  • Sockets - Metric

  • 10mm Socket
  • 12mm Socket

  • Specialty Tools

  • A Piece of Pipe (for leverage)
  • O2 Sensor Socket

How-to Video:

(04:49 min)

Tools List:

    Ratchets & Related

  • Socket Extensions

  • Sockets - Metric

  • 10mm Socket
  • 12mm Socket

  • Specialty Tools

  • A Piece of Pipe (for leverage)
  • O2 Sensor Socket



This part replaces:

  • Walker Products 250-25012

Vehicle Fit

  • 2003 Hyundai Elantra O2 Oxygen Sensor Upstream for L4 2.0L California Emissions for Automatic Transmission (Walker Products)
  • 2004-2008 Hyundai Elantra Upstream O2 Oxygen Sensor for L4 2.0L (Walker Products)
  • 2009 Hyundai Elantra Upstream O2 Oxygen Sensor for L4 2.0L (Built Before 4/03/09 Production Date) (Walker Products)
  • 2004-2009 Kia Spectra Upstream O2 Oxygen Sensor for L4 2.0L (Walker Products)
  • 2005-2009 Kia Spectra 5 Upstream O2 Oxygen Sensor for L4 2.0L (Walker Products)
$209.95
Only 1 left in stock
Part #: WKEOS00140

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Walker Products
Brand #: 250-25012

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"Thanks for the fast reliable service. Great price, and the headlights were as good as oem or better!!! Keep up the good work..."
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