1AEOS01029-O2 Oxygen Sensor

Replaces

2015 Cadillac CTS V Upstream O2 Oxygen Sensor

1AEOS01029-1227657-2015
Guaranteed to fit: 2015 Cadillac CTS

Fit Details

  • Trim: V
  • Oxygen Sensor Location: Upstream

Part Details

This part replaces:

  • Standard Motor Products SG1857
  • OE # 12606569
  • OE # 12596701
  • OE # 12594452
  • OE # 12597878
  • OE # 12607410
  • OE # 12590790
  • OE # 12573005
  • OE # 12573167
  • OE # 12580827
  • OE # 12583290
  • OE # 8125731670
  • OE # 12583804
  • OE # 12609001
  • OE # 12611127
  • OE # 12576131
  • OE # 12584925
  • OE # 12587785
  • Walker Products Inc. 250-24470
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List: $47.95 Save: $12.00
Part 1AEOS01029
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 #: EMS00438

Frequently bought together

Description
Vehicle Fit
Warranty & Shipping
How-To & Tools

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.

What is Upstream vs. Downstream?

  • Upstream location is between the catalytic converter and the engine
  • Downstream location is between the catalytic converter and the tailpipe

 

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 Oxygen (O2) Sensor (0:37)
    • Unclip the O2 sensor wiring harness from its bracket
    • Disconnect the oxygen sensor wiring harness
    • Remove the O2 sensor with an O2 sensor socket and a ratchet
  2. step : Installing the New O2 Sensor (1:56)
    • Twist the new O2 sensor into place
    • Tighten the O2 sensor with an O2 sensor socket and a ratchet
    • Connect the O2 sensor wiring harness
    • Clip the O2 sensor wiring harness into its bracket

Tools needed for replacement:

    Ratchets & Related

  • Ratchet
  • Swivel

  • Specialty Tools

  • O2 Sensor Socket


Fits the following Makes:

Year Make Model Description
2008Buick Enclave Buick Enclave Upstream O2 Oxygen Sensor
2005-2009Buick LaCrosse Buick LaCrosse V6 3.8L California Emissions Upstream O2 Oxygen Sensor
2007-2008Buick Lucerne Buick Lucerne V6 3.8L Partial Zero Emissions Vehicle (PZEV) Upstream O2 Oxygen Sensor
2009-2011Buick Lucerne Buick Lucerne V6 3.9L Upstream O2 Oxygen Sensor
2005Buick Rainier Buick Rainier V8 5.3L Upstream O2 Oxygen Sensor
2006-2007Buick Rendezvous Buick Rendezvous V6 3.5L Upstream O2 Oxygen Sensor
2005-2006Buick Terraza Buick Terraza V6 3.5L Upstream O2 Oxygen Sensor
2006-2007Buick Terraza Buick Terraza V6 3.9L Upstream O2 Oxygen Sensor
2004-2005Cadillac CTS Cadillac CTS V Upstream O2 Oxygen Sensor
2009-2015Cadillac CTS Cadillac CTS V Upstream O2 Oxygen Sensor
2005Cadillac Deville Cadillac Deville Upstream O2 Oxygen Sensor
2003-2005Cadillac Escalade Cadillac Escalade V8 5.3L Upstream O2 Oxygen Sensor
2003-2005Cadillac Escalade Cadillac Escalade V8 5.3L Downstream O2 Oxygen Sensor
2008-2014Cadillac Escalade Cadillac Escalade V8 6.2L Upstream O2 Oxygen Sensor
2003-2005Cadillac Escalade ESV Cadillac Escalade ESV V8 5.3L Upstream O2 Oxygen Sensor
2003-2005Cadillac Escalade ESV Cadillac Escalade ESV V8 5.3L Downstream O2 Oxygen Sensor
2008-2014Cadillac Escalade ESV Cadillac Escalade ESV V8 6.2L Upstream O2 Oxygen Sensor
2003-2005Cadillac Escalade EXT Cadillac Escalade EXT V8 5.3L Upstream O2 Oxygen Sensor
2003-2005Cadillac Escalade EXT Cadillac Escalade EXT V8 5.3L Downstream O2 Oxygen Sensor
2008-2013Cadillac Escalade EXT Cadillac Escalade EXT V8 6.2L Upstream O2 Oxygen Sensor
2004Cadillac Seville Cadillac Seville Upstream O2 Oxygen Sensor
2008-2013Chevrolet Avalanche Chevrolet Avalanche V8 5.3L Upstream O2 Oxygen Sensor
2008-2009Chevrolet Avalanche Chevrolet Avalanche V8 6.0L Upstream O2 Oxygen Sensor
2003-2005Chevrolet Avalanche 1500 Chevrolet Avalanche 1500 V8 5.3L Upstream O2 Oxygen Sensor
2003-2005Chevrolet Avalanche 1500 Chevrolet Avalanche 1500 V8 5.3L Downstream O2 Oxygen Sensor
2011-2013Chevrolet Caprice Chevrolet Caprice V8 6.0L Upstream O2 Oxygen Sensor
2005-2010Chevrolet Cobalt Chevrolet Cobalt L4 2.2L Upstream O2 Oxygen Sensor
2006-2008Chevrolet Cobalt Chevrolet Cobalt L4 2.4L Upstream O2 Oxygen Sensor
2004Chevrolet Corvette Chevrolet Corvette Upstream O2 Oxygen Sensor
2004Chevrolet Corvette Chevrolet Corvette Z06 Upstream O2 Oxygen Sensor
2005-2009Chevrolet Equinox Chevrolet Equinox V6 3.4L Upstream O2 Oxygen Sensor
2006-2011Chevrolet HHR Chevrolet HHR L4 2.2L Upstream O2 Oxygen Sensor
2009-2011Chevrolet HHR Chevrolet HHR L4 2.4L Upstream O2 Oxygen Sensor
2006-2011Chevrolet Impala Chevrolet Impala V6 3.9L Upstream O2 Oxygen Sensor
2007-2011Chevrolet Impala Chevrolet Impala V6 3.5L Upstream O2 Oxygen Sensor
2004-2010Chevrolet Malibu Chevrolet Malibu V6 3.5L Upstream O2 Oxygen Sensor
2006-2007Chevrolet Malibu Chevrolet Malibu V6 3.9L Upstream O2 Oxygen Sensor
2008-2012Chevrolet Malibu Chevrolet Malibu V6 3.6L Upstream O2 Oxygen Sensor
2006Chevrolet Monte Carlo Chevrolet Monte Carlo V6 3.9L Upstream O2 Oxygen Sensor
2006-2007Chevrolet Monte Carlo Chevrolet Monte Carlo V6 3.5L Upstream O2 Oxygen Sensor
2005Chevrolet SSR Chevrolet SSR Upstream O2 Oxygen Sensor
2003-2005Chevrolet Silverado 1500 Chevrolet Silverado 1500 V8 5.3L Upstream O2 Oxygen Sensor
2003-2005Chevrolet Silverado 1500 Chevrolet Silverado 1500 V8 5.3L Downstream O2 Oxygen Sensor
2007Chevrolet Silverado 1500 Chevrolet Silverado 1500 New Body Style V8 4.8L Upstream O2 Oxygen Sensor
2007Chevrolet Silverado 1500 Chevrolet Silverado 1500 New Body Style V8 5.3L Flex Fuel Upstream O2 Oxygen Sensor
2007Chevrolet Silverado 1500 Chevrolet Silverado 1500 New Body Style V8 6.0L Upstream O2 Oxygen Sensor
2008-2013Chevrolet Silverado 1500 Chevrolet Silverado 1500 V8 5.3L Upstream O2 Oxygen Sensor
2008-2013Chevrolet Silverado 1500 Chevrolet Silverado 1500 V8 4.8L Upstream O2 Oxygen Sensor
2008-2013Chevrolet Silverado 1500 Chevrolet Silverado 1500 V8 6.0L Upstream O2 Oxygen Sensor
2009-2013Chevrolet Silverado 1500 Chevrolet Silverado 1500 V8 6.2L Upstream O2 Oxygen Sensor
2007Chevrolet Silverado 2500 HD Chevrolet Silverado 2500 HD Extended Cab New Body Style V8 6.0L Upstream O2 Oxygen Sensor
2007Chevrolet Silverado 2500 HD Chevrolet Silverado 2500 HD New Body Style Regular Cab V8 6.0L Upstream O2 Oxygen Sensor
2007Chevrolet Silverado 2500 HD Chevrolet Silverado 2500 HD Crew Cab New Body Style V8 6.0L Upstream O2 Oxygen Sensor
2008-2010Chevrolet Silverado 2500 HD Chevrolet Silverado 2500 HD Extended Cab V8 6.0L Upstream O2 Oxygen Sensor
2008-2010Chevrolet Silverado 2500 HD Chevrolet Silverado 2500 HD Regular Cab V8 6.0L Upstream O2 Oxygen Sensor
2008-2010Chevrolet Silverado 2500 HD Chevrolet Silverado 2500 HD Crew Cab V8 6.0L Upstream O2 Oxygen Sensor
2007Chevrolet Silverado 3500 HD Chevrolet Silverado 3500 HD Extended Cab New Body Style V8 6.0L Upstream O2 Oxygen Sensor
2007Chevrolet Silverado 3500 HD Chevrolet Silverado 3500 HD New Body Style Regular Cab V8 6.0L Upstream O2 Oxygen Sensor
2007Chevrolet Silverado 3500 HD Chevrolet Silverado 3500 HD Crew Cab New Body Style V8 6.0L Upstream O2 Oxygen Sensor
2008-2010Chevrolet Silverado 3500 HD Chevrolet Silverado 3500 HD Extended Cab V8 6.0L Upstream O2 Oxygen Sensor
2008-2010Chevrolet Silverado 3500 HD Chevrolet Silverado 3500 HD Regular Cab V8 6.0L Upstream O2 Oxygen Sensor
2008-2010Chevrolet Silverado 3500 HD Chevrolet Silverado 3500 HD Crew Cab V8 6.0L Upstream O2 Oxygen Sensor
2013-2015Chevrolet Spark Chevrolet Spark Upstream O2 Oxygen Sensor
2003-2005Chevrolet Suburban 1500 Chevrolet Suburban 1500 V8 5.3L Upstream O2 Oxygen Sensor
2003-2005Chevrolet Suburban 1500 Chevrolet Suburban 1500 V8 5.3L Downstream O2 Oxygen Sensor
2008-2009Chevrolet Suburban 1500 Chevrolet Suburban 1500 V8 6.0L Upstream O2 Oxygen Sensor
2008-2014Chevrolet Suburban 1500 Chevrolet Suburban 1500 V8 5.3L Upstream O2 Oxygen Sensor
2008-2013Chevrolet Suburban 2500 Chevrolet Suburban 2500 V8 6.0L Upstream O2 Oxygen Sensor
2003-2005Chevrolet Tahoe Chevrolet Tahoe V8 5.3L Upstream O2 Oxygen Sensor
2003-2005Chevrolet Tahoe Chevrolet Tahoe V8 5.3L Downstream O2 Oxygen Sensor
2008-2013Chevrolet Tahoe Chevrolet Tahoe V8 6.0L Upstream O2 Oxygen Sensor
2008-2009Chevrolet Tahoe Chevrolet Tahoe V8 4.8L Upstream O2 Oxygen Sensor
2008-2014Chevrolet Tahoe Chevrolet Tahoe V8 5.3L Upstream O2 Oxygen Sensor
2009Chevrolet Tahoe Chevrolet Tahoe V8 6.2L Upstream O2 Oxygen Sensor
2005Chevrolet Trailblazer Chevrolet Trailblazer V8 5.3L Upstream O2 Oxygen Sensor
2005Chevrolet Trailblazer EXT Chevrolet Trailblazer EXT V8 5.3L Upstream O2 Oxygen Sensor
2005-2006Chevrolet Uplander Chevrolet Uplander V6 3.5L Upstream O2 Oxygen Sensor
2006-2008Chevrolet Uplander Chevrolet Uplander V6 3.9L Upstream O2 Oxygen Sensor
2007-2008GMC Acadia GMC Acadia Upstream O2 Oxygen Sensor
2005GMC Envoy GMC Envoy V8 5.3L Upstream O2 Oxygen Sensor
2005GMC Envoy XL GMC Envoy XL V8 5.3L Upstream O2 Oxygen Sensor
2005GMC Envoy XUV GMC Envoy XUV V8 5.3L Upstream O2 Oxygen Sensor
2003-2005GMC Sierra 1500 GMC Sierra 1500 V8 5.3L Upstream O2 Oxygen Sensor
2003-2005GMC Sierra 1500 GMC Sierra 1500 V8 5.3L Downstream O2 Oxygen Sensor
2007GMC Sierra 1500 GMC Sierra 1500 New Body Style V8 4.8L Upstream O2 Oxygen Sensor
2007GMC Sierra 1500 GMC Sierra 1500 New Body Style V8 5.3L Upstream O2 Oxygen Sensor
2007GMC Sierra 1500 GMC Sierra 1500 New Body Style V8 6.0L Upstream O2 Oxygen Sensor
2008-2013GMC Sierra 1500 GMC Sierra 1500 V8 4.8L Upstream O2 Oxygen Sensor
2008-2013GMC Sierra 1500 GMC Sierra 1500 V8 6.0L Upstream O2 Oxygen Sensor
2008-2014GMC Sierra 1500 GMC Sierra 1500 V8 5.3L Upstream O2 Oxygen Sensor
2009-2013GMC Sierra 1500 GMC Sierra 1500 V8 6.2L Upstream O2 Oxygen Sensor
2007GMC Sierra 1500 Classic GMC Sierra 1500 Classic Hybrid V8 5.3L Upstream O2 Oxygen Sensor
2007GMC Sierra 2500 HD GMC Sierra 2500 HD Extended Cab New Body Style V8 6.0L Upstream O2 Oxygen Sensor
2007GMC Sierra 2500 HD GMC Sierra 2500 HD Crew Cab New Body Style V8 6.0L Upstream O2 Oxygen Sensor
2008-2010GMC Sierra 2500 HD GMC Sierra 2500 HD Extended Cab V8 6.0L Upstream O2 Oxygen Sensor
2008-2010GMC Sierra 2500 HD GMC Sierra 2500 HD Crew Cab V8 6.0L Upstream O2 Oxygen Sensor
2007GMC Sierra 3500 HD GMC Sierra 3500 HD Extended Cab New Body Style V8 6.0L Upstream O2 Oxygen Sensor
2007GMC Sierra 3500 HD GMC Sierra 3500 HD Crew Cab New Body Style V8 6.0L Upstream O2 Oxygen Sensor
2008-2010GMC Sierra 3500 HD GMC Sierra 3500 HD Extended Cab V8 6.0L Upstream O2 Oxygen Sensor
2008-2010GMC Sierra 3500 HD GMC Sierra 3500 HD Crew Cab V8 6.0L Upstream O2 Oxygen Sensor
2003-2005GMC Yukon GMC Yukon V8 5.3L Upstream O2 Oxygen Sensor
2003-2005GMC Yukon GMC Yukon V8 5.3L Downstream O2 Oxygen Sensor
2008-2013GMC Yukon GMC Yukon V8 6.2L Upstream O2 Oxygen Sensor
2008-2009GMC Yukon GMC Yukon V8 4.8L Upstream O2 Oxygen Sensor
2008-2013GMC Yukon GMC Yukon V8 6.0L Upstream O2 Oxygen Sensor
2008-2013GMC Yukon GMC Yukon V8 5.3L Upstream O2 Oxygen Sensor
2003-2005GMC Yukon XL 1500 GMC Yukon XL 1500 V8 5.3L Upstream O2 Oxygen Sensor
2003-2005GMC Yukon XL 1500 GMC Yukon XL 1500 V8 5.3L Downstream O2 Oxygen Sensor
2008-2013GMC Yukon XL 1500 GMC Yukon XL 1500 V8 5.3L Upstream O2 Oxygen Sensor
2008-2013GMC Yukon XL 1500 GMC Yukon XL 1500 V8 6.2L Upstream O2 Oxygen Sensor
2008-2009GMC Yukon XL 1500 GMC Yukon XL 1500 V8 6.0L Upstream O2 Oxygen Sensor
2008-2013GMC Yukon XL 2500 GMC Yukon XL 2500 V8 6.0L Upstream O2 Oxygen Sensor
2005Isuzu Ascender Isuzu Ascender V8 5.3L Upstream O2 Oxygen Sensor
2005Isuzu Ascender Isuzu Ascender V8 5.3L Downstream O2 Oxygen Sensor
2004-2005Pontiac Bonneville Pontiac Bonneville V8 4.6L Upstream O2 Oxygen Sensor
2007-2009Pontiac G5 Pontiac G5 L4 2.2L Upstream O2 Oxygen Sensor
2007Pontiac G5 Pontiac G5 L4 2.4L Upstream O2 Oxygen Sensor
2006-2010Pontiac G6 Pontiac G6 V6 3.5L Upstream O2 Oxygen Sensor
2006-2009Pontiac G6 Pontiac G6 V6 3.9L Upstream O2 Oxygen Sensor
2006-2007Pontiac G6 Pontiac G6 L4 2.4L Upstream O2 Oxygen Sensor
2008-2009Pontiac G6 Pontiac G6 V6 3.6L Upstream O2 Oxygen Sensor
2008-2009Pontiac G8 Pontiac G8 V8 6.0L Upstream O2 Oxygen Sensor
2009Pontiac G8 Pontiac G8 V8 6.2L Upstream O2 Oxygen Sensor
2004Pontiac GTO Pontiac GTO Upstream O2 Oxygen Sensor
2005-2006Pontiac GTO Pontiac GTO Upstream O2 Oxygen Sensor
2005Pontiac Grand Prix Pontiac Grand Prix V8 5.3L California Emissions Upstream O2 Oxygen Sensor
2005-2006Pontiac Grand Prix Pontiac Grand Prix V6 3.8L California Emissions Upstream O2 Oxygen Sensor
2007-2008Pontiac Grand Prix Pontiac Grand Prix V6 3.8L Partial Zero Emissions Vehicle (PZEV) Upstream O2 Oxygen Sensor
2005Pontiac Montana Pontiac Montana V6 3.5L Upstream O2 Oxygen Sensor
2006Pontiac Montana SV6 Pontiac Montana SV6 Upstream O2 Oxygen Sensor
2006-2007Pontiac Solstice Pontiac Solstice L4 2.4L Upstream O2 Oxygen Sensor
2006-2007Pontiac Torrent Pontiac Torrent V6 3.4L Upstream O2 Oxygen Sensor
2005Saab 9-7X Saab 9-7X V8 5.3L Upstream O2 Oxygen Sensor
2007-2009Saturn Aura Saturn Aura V6 3.6L Upstream O2 Oxygen Sensor
2007-2008Saturn Aura Saturn Aura V6 3.5L Upstream O2 Oxygen Sensor
2005-2007Saturn Ion Saturn Ion L4 2.2L Upstream O2 Oxygen Sensor
2006-2007Saturn Ion Saturn Ion L4 2.4L Upstream O2 Oxygen Sensor
2007-2008Saturn Outlook Saturn Outlook Upstream O2 Oxygen Sensor
2005-2006Saturn Relay Saturn Relay V6 3.5L Upstream O2 Oxygen Sensor
2006-2007Saturn Relay Saturn Relay V6 3.9L Upstream O2 Oxygen Sensor
2007Saturn Sky Saturn Sky L4 2.4L Upstream O2 Oxygen Sensor
2006-2007Saturn Vue Saturn Vue L4 2.2L Upstream O2 Oxygen Sensor
2008-2009Saturn Vue Saturn Vue V6 3.5L Upstream O2 Oxygen Sensor
2008-2010Saturn Vue Saturn Vue V6 3.6L Upstream O2 Oxygen Sensor

Part Interchange

Brand Label Part Number
DIY Solutions EMS00438

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.

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DIY Solutions
Brand #: EMS00438
Product Reviews
4.71/ 5.0
31 reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
25
4
1
1
0
Oxygen Sensor Excellence
Best price I could find, fits perfectly as the original did, shipped quickly. I would definitely recommend this product and I always check A1 Auto first when looking for OEM replacement parts.
January 31, 2017
Oxygen sensors
They fit and worked perfectly , easy and fast ordering and quick delivery
February 16, 2017
O2 sensor replacement
Quick & easy, worked without issue! Delivery was fast!
February 20, 2017
failed product
The service was excellent -got the product in good time put it on -worked great for ten days then the rpms went down then back up the down and died. The comp. read out is upstream ox censor -how do I proceed from here Bill
March 4, 2017
Issue with part resolved quickly
The original part received was faulty. I believe it had a bad connection at one end of one of the wires. A replacement was shipped out after customer service was convinced it was faulty. the 2 part shipped quickly and resolved the car problem. I will buy from 1A Auto again but cautiously since the parts appear made in China as long as their support remains top notch .
March 12, 2017
o2 sensor
shipping was fast (no cost) thanks to video installation was easy would recomend a1 auto
May 13, 2017
I Would recommend this product to anyone who has this problem with upstream 02 sensor. It was easy to remove replace product .After I removed negative battery terminal rest check engine light it did not come back on and am extremely satisfied.
July 16, 2017
Perfect part
Arrived on time and cleared my trouble code. Installation video was a big help.
August 7, 2017
Great parts!!
This part was an exact fit very easy to install and I would recommend this part. I bought other parts A1Auto that fit perfectly .
August 9, 2017
Purchase & install 4 O2 sensor, 03 silveroda 5.3
I installed all them in my home garage less then two hours. Disconnected the battery for two hours. Took the truck for a drive. The check engine light went out in about ten miles. Everything is alright so far. (I am a DIY person.)
September 16, 2017
Good deal
Price was much better than what they offers locally. It arrived on time and well packaged. Plugged right up to my truck, no problems installing. No more check engine light. I would recommend this product to anyone needing it. But I would add make sure its your sensor first and not something else causeing it.
September 24, 2017
Great product
Went to the auto parts store to get the check engine light looked at, all codes pointed toward the Oxygen sensor but the store couldnt tell me which one. The cost at the store was almost twice what I paid for on 1A Auto for a single sensor. I purchased all 4 and replaced them on my truck in about 1.5 hours. Parts fit exactly without an issue, check engine light is off now, truck is running a lot better as well. I would definitely recommend and purchase from them again!
December 5, 2017
Great product
Sensor arrived quick, other than the fact that Chevrolet gives you NO room to fit a normal size hand to get to the connector, this was easy to install.
January 10, 2018
Great value and quality
I was impresseed with the quality, price and the speed that my product arrived. Keep the great work going.
February 9, 2018
Product was exactly what I ordered and was easy to replace
February 12, 2018
As ordered and as easy as video to install
Not a professional mechanic but I followed the instructions on the A1 video to remove the old sensor and install the new one and it took me less than 15 minutes. I added an extra zip-tie. Would highly recommend.
August 8, 2018
greta service
Great service, good product and fast delivery! Good Job, I will order again
August 26, 2018
Perfect fit
The part arrived right on time, it fit perfectly in my car.
October 11, 2018
Great service
I appreciate your low prices, great customer service, and your company stands behind its warranties.
November 20, 2018
A bit smaller than stock
And what I mean by that, is the sensor shaft that goes in the exhaust pipe is a bit smaller than stock. Im not sure if this will pose any problems. Above that, it installed easily with the proper sensor socket and plugs in to the old fitting. . Unfortunately after installing the sensor I found the wire upstream of the sensor had been rubbing on the front drive shaft and had worn through the wires; thus setting off the "check engine" light. Make sure you check this first and dont just go by the reader like I did. Installed on a 2004 Avalanche Z71 4x4.
April 4, 2019
Works great
Very easy to install, works great MUCH cheaper than buying from anywhere else
June 10, 2019
Great O2 sensor
Fast shipping. Part fit and took care of my problem. Quality and price are great! Highly recommend.
June 17, 2019
Awesome
Happy with my purchase. Will order from again. Very reasonable prices and I love that it automatically added the tool to replace part in my cart. Made things so much easier. I recommend totally. The videos showing how to replace parts was awesome
July 1, 2019
Having the part put in right now part looks good
August 9, 2019
The O2 sensor was a perfect match for my repair and utter was affordable.
November 7, 2019
Great part
Great part and fit perfectly !! Will buy again!
November 23, 2019
Oxygen sensor
Oxygen sensor was priced fairly it was a perfect match and fix the problem very satisfied
January 23, 2020
Exellent service fast shipping will be back for more parts soon
March 13, 2020
05 GMC Yukon 02 sensor
Exactly what was needed to pass emissions. Fit perfectly.
April 9, 2020
Thumbs up!
Had codes for the upstream O2 sensors, so we changed them both. Parts were a direct fit...seems to be what we needed to correct the problem! The order placed, shipped & received in just a couple days! Thanks 1A!
May 14, 2020
Great Quality
O2 sensors are a pain. This product is made of great quality and hasn’t given me any problems installed 4,000 miles ago
August 4, 2020
Customer Q&A
Ask a question to 1A Auto customers who purchased the product
How do you tell which sensor is bad?
Mark D February 27, 2016
Proper diagnostics from a repair facility/shop. Not something you can ID in your driveway
Brian F February 29, 2016
The auto repair place put a computer hook up to the car, it identified a error number (code), that code identified the item. while the engine light did go out for a period of time the engine light did come back on. hope this helps d
Dave H February 29, 2016
I cannot answer that. But the cost of doing it myself vs. Paying a garage to replace, it was worth changing 2 at least
Griffin D March 1, 2016
Which sensor is bank 1 sensor2?
Travis B March 21, 2018
Bank 1 Sensor 2 - Is the Drivers side; after converter; Bank 1 Sensor 1 - is the Drivers side; before converter;
Mark K March 21, 2018
Is this one the bank 2 sensor 1 ?
Antonio L March 12, 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. If you can provide your VIN we would be more than happy to assist you further.
Ian P March 12, 2019
Engine light comes on have it checked out says its 02 oxygen sensor chang that within10 miles the engine light back on check it out and say it needs another 02 oxygen sensor is bad car.runs great is there something else it could be?
Fran J April 25, 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 April 25, 2019
This is a replacement or original?
Carelis R August 12, 2019
1A Autos house brand parts are manufactured by various aftermarket companies specifically for us and built to your vehicles exact OEM specifications. Please let us know if you have any other questions.
Peter L August 13, 2019
On 2003 Chevy suburban 1500 5.3 flex fuel 4x4 is the upstream and downstream o2 sensors the same?
David S September 6, 2019
Yes, I would recommend replacing all 4 sensors at once. I tried one at a time as I got the check engine light. Ended up replacing the newer one too. Once I replaced all 4 at the same time I have had zero issues. Engine going on 192,000 miles
H U September 6, 2019
Thank you for your inquiry, for that vehicle the O2 sensors will be the same for all 4 locations. Please contact us if you have any further questions.
Anthony C September 6, 2019
Customer service

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Saturday - Sunday 8:00am - 4:30pm ET

Cadillac is a registered trademark of General Motors Company. 1A Auto is not affiliated with or sponsored by Cadillac or General Motors Company. See all trademarks.

O2 Oxygen Sensor-1AEOS01029 does not fit your:


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select your Vehicle, to verify this Part will fit.

This part will only fit a 2015 Cadillac CTS with these options.