1AEOS01028-O2 Oxygen Sensor

Replaces

O2 Oxygen Sensor

1AEOS01028-688873-2001
Guaranteed to fit: 2001 Oldsmobile Aurora

Part Details

  • Also Used For: LS Swap

This part replaces:

  • Standard Motor Products SG1856
  • Walker Products Inc. 250-24269
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Part 1AEOS01028
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DIY Solutions
Brand #: EMS00437

Frequently bought together

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

Part Details

  • Also Used For:   LS Swap

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 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

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
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
Is this O2 sensor downstream or upstream?
G L November 28, 2019
downstream
Gary F November 28, 2019
they are universal can be used in both
M A November 28, 2019
Upstream
Maurice-D S November 28, 2019
Thanks for your inquiry. This part will fit in the upstream position on certain vehicles and the downstream position in others. If youd like to provide your vehicle information we would be happy to confirm if it is listed to fit.
Peter L November 29, 2019

Fits the following Makes:

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
2002Cadillac Escalade Cadillac Escalade V8 5.3L (Canada Built Models (1st VIN Digit 2)) Upstream O2 Oxygen Sensor
2002Cadillac Escalade Cadillac Escalade V8 5.3L (Canada Built Models (1st VIN Digit 2)) Downstream O2 Oxygen Sensor
2000-2003Cadillac Seville Cadillac Seville V8 4.6L Upstream O2 Oxygen Sensor
2000-2002Chevrolet Astro Chevrolet Astro V6 4.3L Upstream Passenger Side O2 Oxygen Sensor
2000-2002Chevrolet Astro Chevrolet Astro V6 4.3L Downstream O2 Oxygen Sensor
2002Chevrolet Avalanche 1500 Chevrolet Avalanche 1500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Upstream O2 Oxygen Sensor
2002Chevrolet Avalanche 1500 Chevrolet Avalanche 1500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Downstream O2 Oxygen Sensor
2002-2005Chevrolet Blazer Chevrolet Blazer V6 4.3L Downstream O2 Oxygen Sensor
2002-2005Chevrolet Blazer Chevrolet Blazer V6 4.3L Upstream O2 Oxygen Sensor
2001-2005Chevrolet Impala Chevrolet Impala V6 3.4L Upstream O2 Oxygen Sensor
2001-2003Chevrolet Malibu Chevrolet Malibu V6 3.1L Upstream O2 Oxygen Sensor
2001-2005Chevrolet Monte Carlo Chevrolet Monte Carlo LS V6 3.4L Upstream O2 Oxygen Sensor
2002-2004Chevrolet S10 Pickup Chevrolet S10 Pickup V6 4.3L Upstream O2 Oxygen Sensor
2002-2004Chevrolet S10 Pickup Chevrolet S10 Pickup V6 4.3L Downstream O2 Oxygen Sensor
2003-2004Chevrolet SSR Chevrolet SSR V8 5.3L Upstream O2 Oxygen Sensor
2000-2002Chevrolet Silverado 1500 Chevrolet Silverado 1500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Upstream O2 Oxygen Sensor
2000-2002Chevrolet Silverado 1500 Chevrolet Silverado 1500 V8 4.8L (Canada Built Models (1st VIN Digit 2)) Upstream O2 Oxygen Sensor
2000-2002Chevrolet Silverado 1500 Chevrolet Silverado 1500 V8 4.8L (Canada Built Models (1st VIN Digit 2)) Downstream O2 Oxygen Sensor
2000-2002Chevrolet Silverado 1500 Chevrolet Silverado 1500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Downstream O2 Oxygen Sensor
2002Chevrolet Silverado 1500 Chevrolet Silverado 1500 V6 4.3L (8th Vin Digit X) Upstream O2 Oxygen Sensor
2002Chevrolet Silverado 1500 Chevrolet Silverado 1500 V6 4.3L (8th Vin Digit X) Downstream O2 Oxygen Sensor
2002Chevrolet Silverado 1500 Chevrolet Silverado 1500 V8 5.3L (8th Vin Digit Z) Upstream O2 Oxygen Sensor
2002Chevrolet Silverado 1500 Chevrolet Silverado 1500 V8 5.3L (8th Vin Digit Z) Downstream O2 Oxygen Sensor
2000Chevrolet Silverado 2500 Chevrolet Silverado 2500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Upstream O2 Oxygen Sensor
2000Chevrolet Silverado 2500 Chevrolet Silverado 2500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Downstream O2 Oxygen Sensor
2000-2002Chevrolet Suburban 1500 Chevrolet Suburban 1500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Upstream O2 Oxygen Sensor
2000-2002Chevrolet Suburban 1500 Chevrolet Suburban 1500 V8 5.3L (Canada Built Models (1st VIN Digit 2)) Downstream O2 Oxygen Sensor
2000-2002Chevrolet Tahoe Chevrolet Tahoe V8 4.8L (Canada Built Models (1st VIN Digit 2)) Upstream O2 Oxygen Sensor
2000-2002Chevrolet Tahoe Chevrolet Tahoe V8 5.3L (Canada Built Models (1st VIN Digit 2)) Upstream O2 Oxygen Sensor
2000-2002Chevrolet Tahoe Chevrolet Tahoe V8 5.3L (Canada Built Models (1st VIN Digit 2)) Downstream O2 Oxygen Sensor
2000-2002Chevrolet Tahoe Chevrolet Tahoe V8 4.8L (Canada Built Models (1st VIN Digit 2)) Downstream O2 Oxygen Sensor
2002Chevrolet Tahoe Chevrolet Tahoe V8 5.3L (8th Vin Digit Z) Upstream O2 Oxygen Sensor
2002Chevrolet Tahoe Chevrolet Tahoe V8 5.3L Downstream O2 Oxygen Sensor
2003-2004Chevrolet Trailblazer EXT Chevrolet Trailblazer EXT V8 5.3L Upstream O2 Oxygen Sensor
2001-2005Chevrolet Venture Chevrolet Venture V6 3.4L Upstream O2 Oxygen Sensor
2003-2004GMC Envoy XL GMC Envoy XL V8 5.3L Upstream O2 Oxygen Sensor
2004GMC Envoy XUV GMC Envoy XUV 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 Passenger Side O2 Oxygen Sensor
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 (8th Vin Digit X) Upstream O2 Oxygen Sensor
2002GMC Sierra 1500 GMC Sierra 1500 V6 4.3L (8th Vin Digit X) Downstream O2 Oxygen Sensor
2002GMC Sierra 1500 GMC Sierra 1500 V8 5.3L (8th Vin Digit Z) Downstream O2 Oxygen Sensor
2002GMC Sierra 1500 GMC Sierra 1500 V8 5.3L (8th Vin Digit Z) Upstream 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
2002GMC Yukon GMC Yukon V8 5.3L (8th Vin Digit Z) Upstream O2 Oxygen Sensor
2002GMC Yukon GMC Yukon V8 5.3L (8th Vin Digit Z) 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 Interchange

Brand Label Part Number
DIY Solutions EMS00437

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.

FREE SAME DAY SHIPPING
DIY Solutions
Brand #: EMS00437
Product Reviews
4.33/ 5.0
18 reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
15
0
0
0
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
Works great fast shipping. Hard to find parts online for this canada built truck
January 10, 2019
Satisfied customer
Perfect fit. Competitive prices. Fast shipping. Awesome instillation videos.
January 10, 2019
Fast delivery/perfect fit.
1A Auto is my go to, the parts always fit but it’s the diy videos that make it. Parts arrived quickly and matched exactly.
February 17, 2019
Exact fit for models built in Canada
Replaced my 2002 Silverado O2 sensors. Attach points for perfect.
May 9, 2019
Excellent service and part fitment as always!
Between me, my wife, and 3 kids we have 5 cars so I’m always fixing something. I ALWAYS buy from 1A! Service is always great and the parts ship fast and are always correct the first time. And if I’m in a jam, they have TONS of great how-to videos showing how to replace just about anything on your vehicle!
September 17, 2019
Perfect part
was very surprised to find the oxygen sensor came pre coated with anti siezeWrite
November 28, 2019
Great Quality
The sensor is very high quality and the rapid service from 1A Auto is world class!
January 9, 2020
Great part
Ordered this part to replace my old sensor. Part was cheaper than my local store. Works great! Would recommend!
January 26, 2020
O2 sensors
Perfect Fit. Thats What She Said.
August 3, 2020
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O2 Oxygen Sensor-1AEOS01028 does not fit your:


Before proceeding,

select your Vehicle, to verify this Part will fit.

This part will only fit a 2001 Oldsmobile Aurora with these options.