Description
Warranty & Shipping
How-To & Tools
Product Reviews
Q&A
Vehicle Fit

Specifications:

  • Correct 4 Wire Connector No cutting or splicing
  • Correct wire length (17.6 Inches)

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.

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

 

Item Condition: New

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

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 : 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

4.56/ 5.0
18 reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
13
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1
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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
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
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
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
2009-2013Cadillac 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
2008-2013Cadillac 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
2008-2013Cadillac 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
2008-2013Chevy Avalanche Chevy Avalanche V8 5.3L Upstream O2 Oxygen Sensor
2008-2009Chevy Avalanche Chevy Avalanche V8 6.0L Upstream O2 Oxygen Sensor
2003-2005Chevy Avalanche 1500 Chevy Avalanche 1500 V8 5.3L Upstream O2 Oxygen Sensor
2003-2005Chevy Avalanche 1500 Chevy Avalanche 1500 V8 5.3L Downstream O2 Oxygen Sensor
2011-2013Chevy Caprice Chevy Caprice V8 6.0L Upstream O2 Oxygen Sensor
2005-2009Chevy Cobalt Chevy Cobalt L4 2.2L Upstream O2 Oxygen Sensor
2006-2008Chevy Cobalt Chevy Cobalt L4 2.4L Upstream O2 Oxygen Sensor
2004Chevy Corvette Chevy Corvette Upstream O2 Oxygen Sensor
2004Chevy Corvette Chevy Corvette Z06 Upstream O2 Oxygen Sensor
2005-2009Chevy Equinox Chevy Equinox V6 3.4L Upstream O2 Oxygen Sensor
2006-2011Chevy HHR Chevy HHR L4 2.2L Upstream O2 Oxygen Sensor
2009-2011Chevy HHR Chevy HHR L4 2.4L Upstream O2 Oxygen Sensor
2006-2011Chevy Impala Chevy Impala V6 3.9L Upstream O2 Oxygen Sensor
2007-2011Chevy Impala Chevy Impala V6 3.5L Upstream O2 Oxygen Sensor
2004-2010Chevy Malibu Chevy Malibu V6 3.5L Upstream O2 Oxygen Sensor
2006-2007Chevy Malibu Chevy Malibu V6 3.9L Upstream O2 Oxygen Sensor
2008-2012Chevy Malibu Chevy Malibu V6 3.6L Upstream O2 Oxygen Sensor
2006Chevy Monte Carlo Chevy Monte Carlo V6 3.9L Upstream O2 Oxygen Sensor
2006-2007Chevy Monte Carlo Chevy Monte Carlo V6 3.5L Upstream O2 Oxygen Sensor
2005Chevy SSR Chevy SSR Upstream O2 Oxygen Sensor
2003-2005Chevy Silverado 1500 Chevy Silverado 1500 V8 5.3L Upstream O2 Oxygen Sensor
2003-2005Chevy Silverado 1500 Chevy Silverado 1500 V8 5.3L Downstream O2 Oxygen Sensor
2007Chevy Silverado 1500 Chevy Silverado 1500 New Body Style V8 4.8L Upstream O2 Oxygen Sensor
2007Chevy Silverado 1500 Chevy Silverado 1500 New Body Style V8 5.3L Flex Fuel Upstream O2 Oxygen Sensor
2007Chevy Silverado 1500 Chevy Silverado 1500 New Body Style V8 6.0L Upstream O2 Oxygen Sensor
2008-2013Chevy Silverado 1500 Chevy Silverado 1500 V8 5.3L Upstream O2 Oxygen Sensor
2008-2013Chevy Silverado 1500 Chevy Silverado 1500 V8 4.8L Upstream O2 Oxygen Sensor
2008-2013Chevy Silverado 1500 Chevy Silverado 1500 V8 6.0L Upstream O2 Oxygen Sensor
2009-2013Chevy Silverado 1500 Chevy Silverado 1500 V8 6.2L Upstream O2 Oxygen Sensor
2007Chevy Silverado 2500 HD Chevy Silverado 2500 HD (excluding Cab & Chassis) New Body Style V8 6.0L Upstream O2 Oxygen Sensor
2008-2010Chevy Silverado 2500 HD Chevy Silverado 2500 HD (excluding Cab & Chassis) V8 6.0L Upstream O2 Oxygen Sensor
2007Chevy Silverado 3500 HD Chevy Silverado 3500 HD (excluding Cab & Chassis) New Body Style V8 6.0L Upstream O2 Oxygen Sensor
2008-2010Chevy Silverado 3500 HD Chevy Silverado 3500 HD (excluding Cab & Chassis) V8 6.0L Upstream O2 Oxygen Sensor
2003-2005Chevy Suburban 1500 Chevy Suburban 1500 V8 5.3L Upstream O2 Oxygen Sensor
2003-2005Chevy Suburban 1500 Chevy Suburban 1500 V8 5.3L Downstream O2 Oxygen Sensor
2008-2013Chevy Suburban 1500 Chevy Suburban 1500 V8 5.3L Upstream O2 Oxygen Sensor
2008-2009Chevy Suburban 1500 Chevy Suburban 1500 V8 6.0L Upstream O2 Oxygen Sensor
2008-2013Chevy Suburban 2500 Chevy Suburban 2500 V8 6.0L Upstream O2 Oxygen Sensor
2003-2005Chevy Tahoe Chevy Tahoe V8 5.3L Upstream O2 Oxygen Sensor
2003-2005Chevy Tahoe Chevy Tahoe V8 5.3L Downstream O2 Oxygen Sensor
2008-2013Chevy Tahoe Chevy Tahoe V8 5.3L Upstream O2 Oxygen Sensor
2009Chevy Tahoe Chevy Tahoe V8 6.2L Upstream O2 Oxygen Sensor
2005Chevy Trailblazer Chevy Trailblazer V8 5.3L Upstream O2 Oxygen Sensor
2005Chevy Trailblazer EXT Chevy Trailblazer EXT V8 5.3L Upstream O2 Oxygen Sensor
2005-2006Chevy Uplander Chevy Uplander V6 3.5L Upstream O2 Oxygen Sensor
2006-2008Chevy Uplander Chevy 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 5.3L Upstream O2 Oxygen Sensor
2008-2013GMC Sierra 1500 GMC Sierra 1500 V8 6.0L 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 (excluding Cab & Chassis) New Body Style V8 6.0L Upstream O2 Oxygen Sensor
2008-2010GMC Sierra 2500 HD GMC Sierra 2500 HD (excluding Cab & Chassis) V8 6.0L Upstream O2 Oxygen Sensor
2007GMC Sierra 3500 HD GMC Sierra 3500 HD (excluding Cab & Chassis) New Body Style V8 6.0L Upstream O2 Oxygen Sensor
2008-2010GMC Sierra 3500 HD GMC Sierra 3500 HD (excluding Cab & Chassis) 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
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
2008-2009GMC 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
2008-2009Saturn Vue Saturn Vue V6 3.6L Upstream O2 Oxygen Sensor
Part #: 1AEOS01029


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:

(02:51 min)