1AEOS00154-Toyota Lexus Pontiac Scion O2 Oxygen Sensor


Toyota Lexus Pontiac Scion O2 Oxygen Sensor


Part Details

  • Sensor Type: Air / Fuel Ratio

This part replaces:

  • Walker Products Inc. 250-54007
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List: $116.95 Save: $21.00
Part 1AEOS00154
In Stock

Orders must be placed by 2pm ET
Delivery options for:

Estimated Arrival Cost

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

DIY Solutions
Brand #: EMS00284

Frequently bought together

Vehicle Fit
Warranty & Shipping
How-To & Tools

Part Details

  • Sensor Type:   Air / Fuel Ratio

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.

Direct Fit Replacement

Direct fit replacement part guaranteed to fit and function properly for your specific application

Quality Tested

Quality tested and built to a strict level of product standards

Item Condition: New

Attention California Customers:

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov.

Lifetime Warranty

This item is backed by our limited lifetime warranty. In the event this item should fail due to manufacturing defects during intended use, we will replace the part free of charge. This warranty covers the cost of the part only.

  1. step : Removing the Air Intake (1:01)
    • Remove the 10mm bolts from the air box
    • Disconnect the two sensors
    • Loosen the intake tube hose clamp
    • Unclip the hose from the air box
    • Remove the air box
    • Remove the air filter
  2. step : Removing the Upstream O2 Sensor (2:37)
    • Disconnect the O2 sensor connector
    • Unclip the wiring from the radiator hose clamp
    • Send the sensor through a 22mm wrench
    • Remove the sensor with a 22mm wrench
  3. step : Installing the Upstream O2 Sensor (4:22)
    • Apply copper anti-seize to the threads on the O2 sensor
    • Tighten the O2 sensor by hand
    • Tighten the O2 sensor with a 22mm wrench
    • Clip on the bracket
    • Thread the wire into the bracket
    • Clip the wire into the bracket on the radiator hose
    • Connect the sensor
  4. step : Installing the Air Intake (5:38)
    • Reinstall the air filter
    • Press on the air box
    • Press on the air intake hose to the air box
    • Tighten the hose clamp
    • Connect the two sensors
    • Tighten the 10mm bolts to the air box

Tools needed for replacement:

    Materials, Fluids, and Supplies

  • Rust Penetrant

  • Pliers, Cutters & misc Wrenches

  • Needle nose pliers

  • Ratchets & Related

  • Socket Extensions
  • Ratchet

  • Screwdrivers & Related

  • Flat Blade Screwdriver

  • Sockets - Metric

  • 9mm Socket

  • Wrenches - Metric

  • 22mm Wrench

Need help? Ask one of our Auto Experts
Need help? Ask one of our Auto Experts
Customer Q&A
Ask a question to 1A Auto customers who purchased the product
If I order this part, and dont use it, can I return it and get a full refund?
Jennifer K August 31, 2016
We do have a 60 day money back guarantee. We have a vehicle fit list in the bottom right hand of the listing.
Derek C August 31, 2016
The oxygen sensor that I ordered was installed and operating without any problems. The part was functioning as anticipated. Excellent performance from you. Thanks
Ernest L August 31, 2016
Will this fit my Toyota Camry 2011 see 2.5l?
Miss A September 15, 2017
This will fit the upstream position which is located closer to the front of the vehicle and before the catalytic converter on your 2011 Camry.
Alex P September 18, 2017
Will this fit my 2007 toyota camry? I have an check engine error code P0031. Will this fix that?
Brianna E December 5, 2017
Yes, this part will fit your 2007 Camry. This is a high possibility to fix the check engine light code P0031.
Alex P December 5, 2017
Will this part work on a non California emission?
O T January 15, 2018
No it will not
EDWIN O January 15, 2018
I dont know. My car is a California emission and it did not work.
JAN B January 17, 2018
Yes, I installed this O2 sensor on a 09 Camry originally sold in Texas. There was no smog pump ever installed on this particular vehicle
Terry H January 18, 2018
thank you
Everton S May 22, 2018
thank you
Betty P June 21, 2019
J R June 20, 2020
J R June 20, 2020
I use a 2006 model Toyota RAV4 V6 engine, will this part fit either the left or right upstream?
Abimbola T February 4, 2018
This part will be for the front bank upstream O2 sensor for your application!
Tim K March 27, 2018
Is the UpStream 02 sensor different from the downstream O2 sensor?
John F May 24, 2018
The upstream and downstream sensors are different. This sensor is correct for the upstream only. Thanks!
Adam G May 24, 2018
S K July 19, 2018
D A September 1, 2018
M K February 3, 2019
Betty P June 21, 2019
C A August 9, 2019
Yes big Time. The downstream is past the catalytic converter
K T May 3, 2020
Bank 1 sensor 2 is upstream for a 2012 Toyota Camry?
Jessica O July 8, 2018
It helped but the check engine sign is till there due to not getting one from Toyota dealerships but it works perfectly
R I July 8, 2018
Bank 1 Sensor 2 is Downstream. This part only fits in the Upstream position.
Christa R July 9, 2018
I went through this with a 2007camry. The on board computer is fussy. Be sure you get the exact part for your car as determined by the VIN number.
C O July 9, 2018
does the oxygen sensor bank 1 sensor 1 and bank 2 sensor 1 are the same or not?
Amer M January 10, 2019
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 January 10, 2019
Does it fits Toyota Camry 2008 le 4 cylinders?
Dorjee D January 24, 2019
Yes, according to the information you provided, this part will fit your vehicle.
Jessica D January 24, 2019
I have a 2007 Camry XLE 3.5 V6. I am getting codes; P2197, P0015, and P0017. Will this part fix the problem?
Michael B March 12, 2019
There could be multiple reasons why youre having this particular problem. We suggest taking your vehicle to a nearby reputable shop to identify the cause. Once you know the cause, well be happy to see if we carry the parts and how-to videos needed for your repair.
Emma F March 12, 2019

Fits the following Makes:

Year Make Model Description
2007-2012Lexus ES350 Lexus ES350 V6 3.5L Front Bank Upstream O2 Oxygen Sensor
2007-2008Lexus RX350 Lexus RX350 V6 3.5L (excluding Japan Built Models) Front Bank Upstream O2 Oxygen Sensor
2008Lexus RX350 Lexus RX350 V6 3.5L (Japan Built Models (1st VIN Digit J)) Rear Bank Upstream O2 Oxygen Sensor
2009-2010Lexus RX350 Lexus RX350 V6 3.5L Front Bank Upstream O2 Oxygen Sensor
2015Lexus RX350 Lexus RX350 V6 3.5L (Japan Built Models (1st VIN Digit J)) Front Bank Upstream O2 Oxygen Sensor
2010Lexus RX450h Lexus RX450h V6 3.5L Rear Bank Upstream O2 Oxygen Sensor
2009-2010Pontiac Vibe Pontiac Vibe L4 2.4L Upstream O2 Oxygen Sensor
2005-2008Scion tC Scion tC L4 2.4L Upstream O2 Oxygen Sensor
2005-2012Toyota Avalon Toyota Avalon V6 3.5L Front Bank Upstream O2 Oxygen Sensor
2003Toyota Camry Toyota Camry L4 2.4L California Emissions Upstream O2 Oxygen Sensor
2007-2012Toyota Camry Toyota Camry L4 2.4L Upstream O2 Oxygen Sensor
2007-2011Toyota Camry Toyota Camry V6 3.5L Front Bank Upstream O2 Oxygen Sensor
2009-2010Toyota Corolla Toyota Corolla L4 2.4L Upstream O2 Oxygen Sensor
2001-2003Toyota Highlander Toyota Highlander L4 2.4L Upstream Cylinders #1 & 4 O2 Oxygen Sensor
2004-2007Toyota Highlander Toyota Highlander L4 2.4L Upstream O2 Oxygen Sensor
2008-2010Toyota Highlander Toyota Highlander V6 3.5L Rear Bank Upstream O2 Oxygen Sensor
2009-2013Toyota Matrix Toyota Matrix L4 2.4L Upstream O2 Oxygen Sensor
2004-2008Toyota Rav4 Toyota Rav4 L4 2.4L Upstream O2 Oxygen Sensor
2006-2012Toyota Rav4 Toyota Rav4 V6 3.5L Front Bank Upstream O2 Oxygen Sensor
2007-2011Toyota Sienna Toyota Sienna V6 3.5L Front Bank Upstream O2 Oxygen Sensor
2004Toyota Solara Toyota Solara L4 2.4L Upstream O2 Oxygen Sensor
2008Toyota Solara Toyota Solara L4 2.4L Upstream O2 Oxygen Sensor
2009-2011Toyota Venza Toyota Venza V6 3.5L Rear Bank Upstream O2 Oxygen Sensor

Part Interchange

Brand Label Part Number
DIY Solutions EMS00284

This item may be interchangeable with parts from other brands with the above part numbers. This information is provided only for reference and does not guarantee that the item you are purchasing is identical to parts with part numbers from the brands listed above. To confirm that this item fits your vehicle, use the above "Check Vehicle Fit" option.

DIY Solutions
Brand #: EMS00284
Product Reviews
4.18/ 5.0
11 reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
So far so good!!!
Unbeatable price and with the lifetime warranty seems like a good decision thus far.
November 13, 2017
Oxegen sensor for toyota camry
It was a perfect fit as described. Im very pleased with the product so far and hope that it will last a long time.
November 30, 2017
The cheapest price I could find, and a high quality part to boot!
The oxygen sensor I ordered came well packaged and fit perfectly. I was worried about ordering a non-oem part for a Toyota (especially an emissions part) considering how notoriously finicky they can be about aftermarket parts. The sensor had a good quality connector that matches the original (right down to color) and the wire length was the same. It even came preloaded with anti-seize on the threads, which is just a nice little touch that shows someone did care about the customer’s convenience. The only reason I didn’t give it a ‘5’ was that it didn’t come with the replacement clips that inevitably break off when you’re doing a job like this, but I understand if they did it would have cost more in the first place. It has been working great for a few weeks now, no additional codes, and I’ll be back to this company when the other sensors fail.
December 16, 2017
Affordable and easy to use
First it was the ease of purchase and at affordable price, Im also happy that it doesnt look cheap. It also came with the grease anti rust thingy on it.
September 1, 2018
Works great for 2004 Toyota Camry 2.4l
I honestly liked the product, I bought a different upstream o2 sensor from eba* and it worked for 10 seconds before the check engine light started up again. I borrowed some tools from an automotive shop and removed the negative battery terminal, unplugged the o2 sensor and then unscrewed the o2 sensor and then I plugged in the 1A Auto o2 sensor I bought and it worked flawlessly. No more check engine light and no more worried parent driving!
September 22, 2018
O2 Oxygen Sensor
I ordered O2 sensor for my Toyota Camry from 1A Auto and I got it in no time. The product was in the packaging and when I opened it and touch the wire my hands got dirty. I am not a mechanic so didnt knew whether it has to be like that. Once I put that in my car, car mileage drastically reduced. So I dont even know if that was a good part of not. Sorry for the bed review and giving 2 star for free delivery and sending it in reasonable time (eventhough it cost me almost $74)
September 25, 2018
Worked Beautifully!
Once we ran the trouble codes, the best availability and price of our part needed was1A Auto. In addition, the video installation was so helpful and gave us great confidence on the install. You can bet we will be back for our future auto parts needs! Thanks! Sam
December 12, 2018
Sensor de oxígeno
Exclente calidad del producto, buen precio.
May 10, 2019
Works better than competitors
Bought one from RockAuto and didnt work, this one works wonderfully
July 29, 2019
Wrong part picture advertised and part received did not match
I ordered an oxygen and fuel ratio sensor for Camry 07 but sensor I received did not match the picture I saw on site and computer is not recognizing the sensor . All other parts I ordered worked perfectly. I liked the fast shipping too
April 18, 2020
02 sensor
It fix’s perfectly will definitely buy from this company again
June 30, 2020
Customer service


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Toyota Lexus Pontiac Scion O2 Oxygen Sensor-1AEOS00154 does not fit your:

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