Kia Sephia Spectra Sportage O2 Oxygen Sensor - 1AEOS00139

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How-To & Tools
Product Reviews
Vehicle Fit


  • Direct Fit
    • Correct Connector No cutting or splicing
    • Correct wire length (15.7 inches) 
  • Upstream Sensor
  • 4 wire configuration
  • Replaces dealer part numbers: 0K01A18861A, 0K01A 18861 A, 0K08A18861B, 0K08A 18861 B, 0K08B18861B, 0K08B 18861 B, 0K2AA18861, 0K2AA 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


Install note:

You may be required to reset the vehicle computer after installation of this part.

Our electrical and electronic parts are subject to strict quality control testing. Please ensure proper diagnosis of this item before purchasing as the item cannot be returned once installed or plugged in.

Item Condition: New

Attention California Customers:

WARNING: Cancer and Reproductive Harm -

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

5.00/ 5.0
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1 Star
Great Quality
Very happy with product. Was just a described and would tell others to buy.
October 30, 2018
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Year Make Model Description
1998-2001Kia Sephia Kia Sephia L4 1.8L Upstream O2 Oxygen Sensor
2000-2001Kia Spectra Kia Spectra L4 1.8L Upstream O2 Oxygen Sensor
2002Kia Spectra Kia Spectra L4 1.8L (Built Before 5/22/01 Production Date) Upstream O2 Oxygen Sensor
1996-2002Kia Sportage Kia Sportage L4 2.0L Upstream O2 Oxygen Sensor
Only 2 left in stock
Part #: 1AEOS00139

Order must be placed by 4pm ET

Get it in: 2 - 4 Business Days

Want it sooner? Choose Next Day Air at Checkout

How-to Video:

(03:08 min)