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Vehicle Fit

This Oxygen O2 Sensor is a new, aftermarket replacement part that has the following specifications:

  • Direct Fit
    • Correct Connector No cutting or splicing
    • Correct wire length (14.6 Inches)
  • Replaces many dealer part numbers including: 3921023710, 3921023750
  • Upstream or Downstream Sensor as listed per applications
  • Heated
  • 4 wire configuration
  • 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 badly or fail an emission test then this is the part for you.

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 : Removing the Oxygen Sensor (0:34)
    • Raise and secure the vehicle
    • Disconnect the oxygen sensor wiring harness
    • Loosen the oxygen sensor with a 7/8 inch wrench
    • Attach another wrench to the 7/8 inch wrench for leverage if necessary
    • Pull out the oxygen sensor
  2. step : Installing the New Oxygen Sensor (1:37)
    • Apply anti-seize fluid to the threads of the new oxygen sensor
    • Thread in the new oxygen sensor
    • Tighten the new oxygen sensor with the 7/8 inch wrench
    • Connect the oxygen sensor wiring harness
    • Lower the vehicle to the ground

Tools needed for replacement:

    General Tools

  • Floor Jack
  • Jack Stands

  • Materials, Fluids, and Supplies

  • Anti-Seize Grease

  • Wrenches - SAE

  • Complete SAE Wrench Set

4.33/ 5.0
6 reviews
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1 Star
Best Customer Service
I will not buy parts from anyone else but 1AAUTO...I end up ordering a wrong part and they were on top of it and didnt give me the run around as you would think ordering online. But really were kind and problem solved my issue right away. I cant appreciate it enough. Plus, you will get the best price...I sure did and I looked everywhere before ordering with 1AAUTO. Thank you.
February 19, 2017
o2 sensor
the part fit perfectly, received very fast, great price.
July 24, 2017
Fast shipping, video was easy to follows, got my old sensor switched out quick with no problems at all.
November 9, 2017
Philly First Timer
November 14, 2017
Works as described
Installed on my Hyundai Elantra 2003 GLS as a downstream sensor. Check engine light went off. Its been 500 miles with no problem, so I am satisfied.
March 27, 2018
Wrong parts
Twice I have received incorrect parts and both times are “under review�, yet no resolution. Patience is running out and getting close to not ordering from 1aauto.
September 25, 2018
Will this fit my car? Add a vehicle to make sure
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Year Make Model Description
2000-2011Hyundai Accent Hyundai Accent Upstream O2 Oxygen Sensor
2000-2011Hyundai Accent Hyundai Accent Downstream O2 Oxygen Sensor
2001-2013Hyundai Elantra Hyundai Elantra L4 2.0L Downstream O2 Oxygen Sensor
2003-2008Hyundai Tiburon Hyundai Tiburon L4 2.0L Downstream O2 Oxygen Sensor
2005-2009Hyundai Tucson Hyundai Tucson L4 2.0L Downstream O2 Oxygen Sensor
2006-2011Kia Rio Kia Rio L4 2.0L Downstream O2 Oxygen Sensor
2006-2011Kia Rio5 Kia Rio5 Downstream O2 Oxygen Sensor
2010Kia Soul Kia Soul L4 1.6L Downstream O2 Oxygen Sensor
2010-2011Kia Soul Kia Soul L4 2.0L Downstream O2 Oxygen Sensor
2004-2009Kia Spectra Kia Spectra Downstream O2 Oxygen Sensor
2005-2009Kia Spectra 5 Kia Spectra 5 Downstream O2 Oxygen Sensor
2005-2010Kia Sportage Kia Sportage L4 2.0L Downstream O2 Oxygen Sensor
Part #: 1AEOS00022

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:

(02:44 min)