Warranty & Shipping
How-To & Tools
Product Reviews
Vehicle Fit


  • Direct Fit
    • Correct Connector No cutting or splicing
    • Correct wire length (13.4 Inches)
  • Upstream or Downstream Sensor as listed per applications
  • Heated
  • 4 wire configuration
  • Replaces dealer part numbers: 36531PAAA01, 36531 PAA A01
  • 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

4.50/ 5.0
6 reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Smaller sensor than OEM
I purchased this to replace a malfunctioning upsteam oxygen sensor on my 02 accord EX Sedan. Shipping was incredibly fast, arriving a day before their original estimate. Installation went smoothly, but upon comparison it was clear that the sensor is significantly smaller than the OEM original. Luckily, the fittings were the same size and it still works. Only time will tell if this sensor will cause an issue (trouble code). I deducted one star for the size difference and a second star because my order doesnt appear in my online account. Yet, when I use the "wheres my order" feature, it shows all of the details.
November 1, 2016
Prompt service and the sensor fit perfectly. Im very pleased.
July 21, 2017
great price
and fast delivery thank you received it in less then 2 days
September 11, 2017
2001 honda odyssey 02 oxygen sensor
I purchased this 02 oxygen sensor recently April 18 and it has worked really well so far. The only issue I had during installation and this is something I should have done was to measure the length of the wire on both the new and old parts. The new part I received from A1 auto was almost 2 inches shorter and made the connection almost impossible. I hope an improvement is done about this.
May 1, 2018
O2 Sensor for my 1996 Honda Accord came on time exactly like A1 Auto said it would . It fit perfectly this time around referring to the connector plug. Apparently the first one I ordered had a problem with the connector plug and it would not go onto my housing .This took care of my check engine light . Thanks A1 Auto.
May 2, 2018
Better than local parts store.
This is still on my car. Other replacements require you to splice wires. Bosch and Duralast. This one is exact fit. Lead Lead length and thread were exact.
October 25, 2018
Will this fit my car? Add a vehicle to make sure
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Year Make Model Description
1994-1995Honda Accord Honda Accord DX LX L4 2.2L O2 Oxygen Sensor
1996-1997Honda Accord Honda Accord DX LX L4 2.2L Upstream O2 Oxygen Sensor
1998-2002Honda Accord Honda Accord L4 2.3L (excluding Ultra Low Emissions Vehicle (ULEV)) Upstream O2 Oxygen Sensor
2000Honda Insight Honda Insight Downstream O2 Oxygen Sensor
2001Honda Insight Honda Insight Manual Transmission Downstream O2 Oxygen Sensor
1999-2001Honda Odyssey Honda Odyssey V6 3.5L Downstream O2 Oxygen Sensor
1994-1995Honda Prelude Honda Prelude L4 2.2L (excluding VTEC) O2 Oxygen Sensor
Part #: 1AEOS00061

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)