• Direct Fit
  • Correct Connector No cutting or splicing
  • Correct wire length (13.8 Inches)
  • Correct wire length 
  • Upstream Sensor


Our electrical and electronic parts are subject to strict quality control testing.  Once the item has been installed or plugged in, it is no longer eligible for a refund.  The item may be eligible for replacement, only if it is found to have a manufacturing defect. Before purchasing, please ensure proper diagnosis of the failed original part is performed


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.

  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

5.0 / 5.0
1 Review
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1 Star
Oxigen sensor
Thank you. The part fits good. Excellent.Good price tool.
March 3, 2018
5 months ago
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Vehicle Fit

  • 2001-2004 Chevy Tracker V6 2.5L Upstream O2 Oxygen Sensor Driver or Passenger Side
  • 2002-2003 Suzuki Aerio L4 2.0L Upstream O2 Oxygen Sensor
  • 2004-2007 Suzuki Aerio L4 2.3L Upstream O2 Oxygen Sensor
  • 1999-2002 Suzuki Esteem L4 1.8L Upstream O2 Oxygen Sensor
  • 2001-2005 Suzuki Grand Vitara V6 2.5L Upstream O2 Oxygen Sensor Driver or Passenger Side
  • 2004 Suzuki Vitara V6 2.5L Upstream O2 Oxygen Sensor Driver or Passenger Side
Part #: 1AEOS02003

How-to Video:

(03:08 min)