O2 Oxygen Sensor - 1AEOS00031

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How-To & Tools
Product Reviews
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 (43.5 inches)
  • 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 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 testing.

Parts cannot be returned after they have been installed. Contact us with any questions before installing the parts.

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
5 Stars
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1 Star
Great product
It was easy to replace and fixed the problem good product.
February 3, 2019
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Year Make Model Description
1997-2003Chevy Corvette Chevy Corvette Downstream O2 Oxygen Sensor
2003Chevy Corvette Chevy Corvette Z06 Downstream O2 Oxygen Sensor
1997-1999Chevy Malibu Chevy Malibu L4 2.4L Downstream O2 Oxygen Sensor
1997-2003Chevy Malibu Chevy Malibu V6 3.1L Downstream O2 Oxygen Sensor
1999-2004Oldsmobile Alero Olds Alero V6 3.4L Downstream O2 Oxygen Sensor
1999-2001Oldsmobile Alero Olds Alero L4 2.4L Downstream O2 Oxygen Sensor
1997-1999Oldsmobile Cutlass Olds Cutlass Downstream O2 Oxygen Sensor
1999-2001Pontiac Grand Am Pontiac Grand Am L4 2.4L Downstream O2 Oxygen Sensor
1999-2004Pontiac Grand Am Pontiac Grand Am V6 3.4L Downstream O2 Oxygen Sensor
Part #: 1AEOS00031

Order must be placed by 4pm ET
Delivery options for:

Estimated Arrival Cost

Deliveries made to PO Boxes and FPO may take longer. See our Shipping & Delivery for more information.

Get it in: 2 - 4 Business Days

Want it sooner? Choose Next Day Air at Checkout

How-to Video:

(03:08 min)