Honda Civic O2 Oxygen Sensor Pair - 1AEEK00173

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Vehicle Fit

Part Details

  • Quantity:   Pair


  • Includes:
    • (1) Upstream Air / Fuel ratio sensor
    • (1) Downstream monitor sensor
  • Direct fit sensors
  • Correct Connector
    • No cutting or splicing
  • Replaces dealer part numbers: 36531PLM306, 36531 PLM 306, 36531PLMA11, 36531 PLM A11, 36531PPA305, 36531 PPA 305, 36531PPAA01, 36531 PPA A01, 36531PRBA01, 36531 PRB A01, 36531PZAL01, 36531 PZA L01, 36531P5M004, 36531P5M014, 36531 P5M 004, 36531 P5M 014
  • 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

A failed upstream sensor could lead to a failed downstream sensor. If your vehicle is running poorly or failed emiss

ions test due to faulty O2 sensors then these are the parts for you!

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
3 reviews
5 Stars
4 Stars
3 Stars
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1 Star
O2 to the rescue
It worked wonderfully. Once I installed it. The check engine light went away (after driving for a while). Inexpensive. 2 sensors for the price of 1. Fast shipping to Canada.
July 5, 2017
O2 sensors
Worked great little delay on delivery but customer service was big help and reshipped items and got to me in the next 2 days definitely will order again from 1 auto also not only are they helpful with car parts they make videos showing you how to replace part thanks 1 a auto ill be ordering soon
April 1, 2018
Honda civic oxygen sensor pair
It was the right part and was at a great price. Will be ordering again in the future.
May 28, 2018
Will this fit my car? Add a vehicle to make sure
Customer Q&A
Ask a question to 1A Auto customers who purchased the product
Does this fit a 2005 Honda Civic lx 1.7l?
Juan M February 6, 2017
Yes, this will include a upstream and downstream sensor for your 2005 Honda Civic LX with the 1.7L engine.
Alex P February 6, 2017
Do I need special socket to change downstream?
Glenn C April 15, 2017
No. Its easy.
Zean K April 15, 2017
I changed both upper and lower sensors with an open end wrench but the O2 sensor socket would make the job easier
Winstanley F April 15, 2017
Yes on my 2004 Civic. Its slightly below the upstream sensor and I didnt have any way to get to it without using a socket.
David B April 15, 2017
No its not but for the price of the socket I recommend it. Locations are very tight to use a wrench a reg socket would require you to cut the wires.
Edward U April 15, 2017
i have a 2004 honda civic dxg Will plain dx parts fit this car? Looking at the up and down stream oxygen sensor..wa t to make sure the dx will fit dxg.. Im guessing it will..
Dee B August 30, 2018
This part is specific to vehicles with a particular set of options. We will need more information about your vehicle to confirm the fit.
Jessica D August 30, 2018
Year Make Model Description
2001-2005Honda Civic Honda Civic GX L4 1.7L Upstream & Downstream O2 Oxygen Sensor Pair
2004-2005Honda Civic Honda Civic DX LX L4 1.7L Upstream & Downstream O2 Oxygen Sensor Pair
Part #: 1AEEK00173

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)