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

Specifications:

  • Correct 4 Wire Connector. No cutting or splicing
  • Correct wire length (16.86 Inches)
  • Replaces dealer part numbers: 12558850, 12559850, 12561776, 12562943, 12567127, 12567254, 12590789, 8125671270, 81256 71270, 8972873520, 89728 73520, 97287352, 972873520

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

Attention California Customers:

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 O2 Sensor (0:37)
    • Pry out the clip and pin from the sensor
    • Disconnect the O2 sensor harness
    • Cut off the harness connector and sensor with wire cutters
    • Remove the O2 sensor wire with a 7/8 wrench
  2. step : Installing the New O2 Sensor (2:20)
    • Twist on the O2 sensor to the exhaust pipe
    • Tighten the O2 sensor with a 7/8 wrench
    • Reconnect the O2 sensor harness
    • Replace the pin and re-clip the harness to the vehicle

Tools needed for replacement:

    Pliers, Cutters & misc Wrenches

  • Wire Cutters

  • Screwdrivers & Related

  • Flat Blade Screwdriver

  • Wrenches - SAE

  • 7/8 Inch Wrench

3.67/ 5.0
9 reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
6
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3
Junk
After installation my check engine light came back on 3 days letter for the same issue
February 14, 2017
Best price fast and great service
I have ordered Pats for my vehicles twice now and both times I received quality parts Wich worked perfect . The staff was great in making sure I got the right parts the first time .they were pleasant to deal with . The shipping was fast I got the parts faster than they said I would . I will be using them from now on whenever I need parts their prices are better than anyone else local. Would definatley recommend to anyone. if you need parts call these guys first
July 24, 2017
O2 sensor
I would highly recommend this product. It was a perfect fit. Application was a breeze, with Im minutes the old was out and new one installed. Check engine light gone. Thank you. And delivery was very quick thanks again.
September 27, 2017
Great service and product
Fast delivery and a perfect fit for my S-10 pickup. Saved me a lot of money and time. Thanks!!
November 26, 2017
Wrong part
I ordered a new downstream o2 sensor for my 2001 Silverado 1500. The site said the one I ordered would be a direct fit. After cutting the harness off of my old sensor (as instructed to do so in 1aauto how to video) I noticed the new harness will not fit into the existing port. There was an extra notch in the new bracket that wouldnt fit in the port. So now Im driving with a completely useless o2 sensor until the new correct part arrives. Still like the site though. Heck of a lot cheaper than local auto parts stores. Just needs more clarification in the online description.
April 8, 2018
Very satisfied.
Seemed to be a quality part made with quality components! Also, was pleased to find that this sensor came with anti-seize compound already on the threads. Direct replacement for original on my 2001 Silverado.
June 14, 2018
O2 sensor replacement cleared the engine code.
The O2 sensor arrived when predicted. Snipped the connector off of the sensor to be replaced. Made removal much easier. After the new O2 sensor was installed it took about 20 miles of driving for the service engine light to clear.
September 9, 2018
Didn’t work
I give them one star because it was the correct sensor And theyre supposed to refunded my money (still waiting).... Brand new out of the box They all just didn’t work!! Threw 5 codes on my truck.PAID TO HAVE THEM INSTALLED so I’m out that money. BIG INCONVENIENCE AND A LOSS FOR ME. I wouldn’t recommend using TRQ I’m second guessing the front cv axles I’ve installed on my truck from them after experiencing this. There probably just wired wrong but they should’ve been tested before it left the production line
September 12, 2018
O2 sensor
Perfect fit, fast delivery No problem with the product
October 2, 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
Will this o2 sensor fit a 2000 Chevy Silverado extended 3 door cab us built with 5.3 v 8 motor down stream pass. Side ?
Steve V October 7, 2017
In order to better assist you, we would need to know whether your vehicle is Canada Built, or a separate location built. Could you provide us the vehicle VIN number?
Alex P October 9, 2017
My car Impala 2003/3.4/V6 code P0135 ,bank1 ,sensor1,heater circuit, internal open. after change new O2 sensor, check engine On, still code P0135.Please let me know ,how fix that.Thanks
Du D October 10, 2018
Year Make Model Description
2001-2005Buick Century Buick Century V6 3.1L Upstream O2 Oxygen Sensor
2004Buick Rainier Buick Rainier V8 5.3L Upstream O2 Oxygen Sensor
2002-2005Buick Rendezvous Buick Rendezvous V6 3.4L Upstream O2 Oxygen Sensor
2000-2004Cadillac Deville Cadillac Deville V8 4.6L Upstream O2 Oxygen Sensor
2000-2002Cadillac Eldorado Cadillac Eldorado V8 4.6L Upstream O2 Oxygen Sensor
2000-2003Cadillac Seville Cadillac Seville V8 4.6L Upstream O2 Oxygen Sensor
2000-2002Chevy Astro Chevy Astro V6 4.3L Upstream O2 Oxygen Sensor Passenger Side
2000-2002Chevy Astro Chevy Astro V6 4.3L Downstream O2 Oxygen Sensor
2002Chevy Avalanche 1500 Chevy Avalanche 1500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Upstream O2 Oxygen Sensor
2002Chevy Avalanche 1500 Chevy Avalanche 1500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Downstream O2 Oxygen Sensor
2002-2005Chevy Blazer S10 Chevy Blazer S10 V6 4.3L Upstream O2 Oxygen Sensor
2002-2005Chevy Blazer S10 Chevy Blazer S10 V6 4.3L Downstream O2 Oxygen Sensor
2001-2005Chevy Impala Chevy Impala V6 3.4L Upstream O2 Oxygen Sensor
2001-2003Chevy Malibu Chevy Malibu V6 3.1L Upstream O2 Oxygen Sensor
2001-2004Chevy Monte Carlo Chevy Monte Carlo LS V6 3.4L Upstream O2 Oxygen Sensor
2002-2004Chevy S10 Pickup Chevy S10 Pickup V6 4.3L Upstream O2 Oxygen Sensor
2002-2004Chevy S10 Pickup Chevy S10 Pickup V6 4.3L Downstream O2 Oxygen Sensor
2003-2004Chevy SSR Chevy SSR V8 5.3L Upstream O2 Oxygen Sensor
2000-2002Chevy Silverado 1500 Chevy Silverado 1500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Upstream O2 Oxygen Sensor
2000-2002Chevy Silverado 1500 Chevy Silverado 1500 V8 4.8L (Canada Built Models (1st VIN Digit 2)) Upstream O2 Oxygen Sensor
2000-2002Chevy Silverado 1500 Chevy Silverado 1500 V8 4.8L (Canada Built Models (1st VIN Digit 2)) Downstream O2 Oxygen Sensor
2000-2002Chevy Silverado 1500 Chevy Silverado 1500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Downstream O2 Oxygen Sensor
2002Chevy Silverado 1500 Chevy Silverado 1500 V6 4.3L Upstream O2 Oxygen Sensor
2002Chevy Silverado 1500 Chevy Silverado 1500 V6 4.3L Downstream O2 Oxygen Sensor
2000Chevy Silverado 2500 Chevy Silverado 2500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Upstream O2 Oxygen Sensor
2000Chevy Silverado 2500 Chevy Silverado 2500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Downstream O2 Oxygen Sensor
2000-2002Chevy Suburban 1500 Chevy Suburban 1500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Upstream O2 Oxygen Sensor
2000-2002Chevy Suburban 1500 Chevy Suburban 1500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Downstream O2 Oxygen Sensor
2000-2002Chevy Tahoe Chevy Tahoe V8 4.8L (Canada Built Models (1st VIN Digit 2)) Upstream O2 Oxygen Sensor
2000-2002Chevy Tahoe Chevy Tahoe V8 5.3L (8th Vin Digit T) (Canada Built Models (1st VIN Digit 2)) Upstream O2 Oxygen Sensor
2000-2002Chevy Tahoe Chevy Tahoe V8 5.3L (Canada Built Models (1st VIN Digit 2)) Downstream O2 Oxygen Sensor
2000-2002Chevy Tahoe Chevy Tahoe V8 4.8L (Canada Built Models (1st VIN Digit 2)) Downstream O2 Oxygen Sensor
2002Chevy Tahoe Chevy Tahoe V8 5.3L (8th Vin Digit Z) Upstream O2 Oxygen Sensor
2002Chevy Tahoe Chevy Tahoe V8 5.3L Downstream O2 Oxygen Sensor
2003-2004Chevy Trailblazer EXT Chevy Trailblazer EXT V8 5.3L Upstream O2 Oxygen Sensor
2002-2005Chevy Venture Chevy Venture V6 3.4L Upstream O2 Oxygen Sensor
2003-2004GMC Envoy XL GMC Envoy XL V8 5.3L Upstream O2 Oxygen Sensor
2002-2004GMC S-15 Sonoma GMC S-15 Sonoma V6 4.3L Upstream O2 Oxygen Sensor
2002-2004GMC S-15 Sonoma GMC S-15 Sonoma V6 4.3L Downstream O2 Oxygen Sensor
2000-2002GMC Safari GMC Safari V6 4.3L Upstream O2 Oxygen Sensor Passenger Side
2000-2002GMC Safari GMC Safari V6 4.3L Downstream O2 Oxygen Sensor
2000-2002GMC Sierra 1500 GMC Sierra 1500 V8 4.8L (Canada Built Models (1st VIN Digit 2)) Upstream O2 Oxygen Sensor
2000-2002GMC Sierra 1500 GMC Sierra 1500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Upstream O2 Oxygen Sensor
2000-2002GMC Sierra 1500 GMC Sierra 1500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Downstream O2 Oxygen Sensor
2000-2002GMC Sierra 1500 GMC Sierra 1500 V8 4.8L (Canada Built Models (1st VIN Digit 2)) Downstream O2 Oxygen Sensor
2002GMC Sierra 1500 GMC Sierra 1500 V6 4.3L Upstream O2 Oxygen Sensor
2002GMC Sierra 1500 GMC Sierra 1500 V6 4.3L Downstream O2 Oxygen Sensor
2000GMC Sierra 2500 GMC Sierra 2500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Upstream O2 Oxygen Sensor
2000GMC Sierra 2500 GMC Sierra 2500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Downstream O2 Oxygen Sensor
2000-2002GMC Yukon GMC Yukon V8 4.8L (Canada Built Models (1st VIN Digit 2)) Upstream O2 Oxygen Sensor
2000-2002GMC Yukon GMC Yukon V8 5.3L (Canada Built Models (1st VIN Digit 2)) Upstream O2 Oxygen Sensor
2000-2002GMC Yukon GMC Yukon V8 4.8L (Canada Built Models (1st VIN Digit 2)) Downstream O2 Oxygen Sensor
2000-2002GMC Yukon GMC Yukon V8 5.3L (Canada Built Models (1st VIN Digit 2)) Downstream O2 Oxygen Sensor
2000-2002GMC Yukon XL 1500 GMC Yukon XL 1500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Upstream O2 Oxygen Sensor
2000-2002GMC Yukon XL 1500 GMC Yukon XL 1500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Downstream O2 Oxygen Sensor
2002Honda Passport Honda Passport V6 3.2L Upstream O2 Oxygen Sensor
2002Honda Passport Honda Passport V6 3.2L Downstream O2 Oxygen Sensor
2003-2004Isuzu Ascender Isuzu Ascender V8 5.3L Upstream O2 Oxygen Sensor
2004Isuzu Axiom Isuzu Axiom V6 3.5L Upstream O2 Oxygen Sensor
2004Isuzu Axiom Isuzu Axiom V6 3.5L Downstream O2 Oxygen Sensor
2002-2004Isuzu Rodeo Isuzu Rodeo V6 3.2L Upstream O2 Oxygen Sensor
2002-2004Isuzu Rodeo Isuzu Rodeo V6 3.2L Downstream O2 Oxygen Sensor
2004Isuzu Rodeo Isuzu Rodeo V6 3.5L Upstream O2 Oxygen Sensor
2004Isuzu Rodeo Isuzu Rodeo V6 3.5L Downstream O2 Oxygen Sensor
2002-2003Isuzu Rodeo Sport Isuzu Rodeo Sport V6 3.2L Upstream O2 Oxygen Sensor
2002-2003Isuzu Rodeo Sport Isuzu Rodeo Sport V6 3.2L Downstream O2 Oxygen Sensor
2001-2004Oldsmobile Alero Olds Alero V6 3.4L Upstream O2 Oxygen Sensor
2001-2003Oldsmobile Aurora Olds Aurora V8 4.0L Upstream O2 Oxygen Sensor
2001-2002Oldsmobile Aurora Olds Aurora V6 3.5L Upstream O2 Oxygen Sensor
2000-2002Oldsmobile Intrigue Olds Intrigue V6 3.5L Upstream O2 Oxygen Sensor
2001-2004Oldsmobile Silhouette Olds Silhouette V6 3.4L Upstream O2 Oxygen Sensor
2001-2005Pontiac Aztek Pontiac Aztek V6 3.4L Upstream O2 Oxygen Sensor
2001-2005Pontiac Grand Am Pontiac Grand Am V6 3.4L Upstream O2 Oxygen Sensor
2001-2003Pontiac Grand Prix Pontiac Grand Prix V6 3.1L Upstream O2 Oxygen Sensor
2001-2005Pontiac Montana Pontiac Montana V6 3.4L Upstream O2 Oxygen Sensor
Part #: 1AEOS01028


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:

(03:02 min)