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

Part Details

  • Quantity:   4 Piece Set

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.

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 Upstream O2 Sensor (0:36)
    • Identify the upstream and downstream O2 Sensors
    • Clip the harness pin with wire cutters from the upstream harness
    • Disconnect the upstream harness
    • Pry and separate the clip from the upstream sensor with a flat blade screwdriver
    • Pull the O2 sensor wire free from the clips
    • Cut the harness connector with wire cutters
    • Remove the O2 sensor with a 7/8 wrench
  2. step : Installing the New Upstream O2 Sensor (2:15)
    • Feed and twist the new upstream O2 sensor into places
    • Tighten the O2 sensor with a 7/8 wrench
    • Push the harness over the frame and reconnect the clip
    • Connect the harness and push the pin in place
    • Re-clip the harness into the bracket

Tools needed for replacement:

    Pliers, Cutters & misc Wrenches

  • Wire Cutters

  • Screwdrivers & Related

  • Flat Blade Screwdriver

  • Wrenches - SAE

  • 7/8 Inch Wrench

4.23/ 5.0
13 reviews
5 Stars
4 Stars
3 Stars
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1 Star
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1
Perfect fit! Great products and service
I’ve been ordering a lot of parts from y’all. You have great products at a great price. I really like the videos too, thanks y’all
February 16, 2018
Wrong part for truck
Complete wrong oxygen sensors for my truck, even though the listing said "guaranteed to fit". I found that out too late after I had already opened them. Going to try to salvage some of the cost by listing the new ncorrect parts on eBay. I dont know what these fit, but it wasnt my truck.
March 23, 2018
Perfect fit!
My o2 sensors were a perfect fit. For a very affordable price !
April 1, 2018
Working great so far
Working great so far, the sensors fit perfectly and all is well.
April 2, 2018
Good product but not 100% correct
The product was high quality but unfortunently this did not work for all 4 sensors as the connectors were different. This is not 1As auto fault as Chevy trucks some have the flat connector on the pre cats and some have the square. Before purchasing this verify what you have.
April 4, 2018
truck parts
thank you. Our truck is working great again. Will buy future parts from you
July 29, 2018
First Time User
Happy with being able to speak with someone about ordering the correct part. Pricing was cheaper than going to a brick and mortar.
August 1, 2018
Junk
Don’t buy the cheap ones, spend the money and get good ones, usually reflected by price. these only lasted about a month and got same codes again, i replaced with better ones and haven’t had a problem since. i would not recommend.
August 1, 2018
So far so good . Glad we found this site . It was affordable and when I wasnt sure about something I called and they were very helpful and extremely nice . I would really recommend 1A Auto . Thank you 1A Auto
September 28, 2018
Worked great and good price too
First, when I was having to buy new sensors I was expecting a higher price so I was relieved to see it wasn’t nearly as bad as I thought it was on my wallet. Installed them without any issues and now my fuel air mixture is where it should be so I’m quite pleased with my purchase ^__^
October 3, 2018
An excellent place to buy parts
I’ve bought from one a auto several times now and it’s always been exactly what I ordered it came early and they have great customer service
October 9, 2018
02 sensors
The 02 sensors were a perpect match and work as good as the originals.
November 2, 2018
1AEEK00816-O2 Oxygen Sensor
This item could not be located locally when I needed them, but 1A-Auto had them and shipped them out ASAP! One awesome transaction! Thanks A1-Auto!
November 15, 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
Are these sensors equipped with internal heaters?
Patrick W February 11, 2018
Yes they are.
Tim K March 28, 2018
Do u have to unplug the positive or negative cable before installing o2 sensors ?
Henry G June 27, 2018
Looking for a set of sensors for a 2000 Silverado 2500 with a 6.0. Will these work?
Brian S August 1, 2018
No, this oxygen sensor kit is not compatible with the 2000 Chevy Silverado 1500 with the 6.0L Engine. These sensors are only compatible with the 5.3L engine. Please let us know if you need any further assistance, thank you.
Jessica D August 2, 2018
Good question, but hard to say. They did not fit my 2002 Chevy Tahoe. Their are several models of sensors, and some have different plugs. Depends if the vehicle was made in Canada or the US, or if the parts were made in Canada or the US. In my case the vehicle was made in the US but the parts came from a plant in Canada. Made it very difficult to find the right part. My suggestion is to disconnect the plug under the vehicle, and take a picture. This will make your search much easier. With the picture, my local Pep Boys dealer helped me determine the right plug, and A1 Auto had a much better price. A1 Auto customer service was very helpful as well.
B E August 2, 2018
Year Make Model Description
1999-2000Cadillac Escalade Cadillac Escalade V8 5.7L Downstream Upstream O2 Oxygen Sensor 4 Piece Set
2002Cadillac Escalade Cadillac Escalade V8 5.3L (excluding Canada Built Models) Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-1997Chevy Astro Chevy Astro V6 4.3L Downstream Upstream O2 Oxygen Sensor 4 Piece Set
2002Chevy Avalanche 1500 Chevy Avalanche 1500 V8 5.3L (excluding Canada Built Models) Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-1999Chevy C1500 Truck Chevy C1500 Truck V8 5.0L with 4L60E 4 Speed Automatic Transmission Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-1998Chevy C1500 Truck Chevy C1500 Truck V6 4.3L Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-1999Chevy C1500 Truck Chevy C1500 Truck V8 5.7L with 4L60E 4 Speed Automatic Transmission Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-2000Chevy C2500 Truck Chevy C2500 Truck V8 5.7L with 4L60E 4 Speed Automatic Transmission Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-2000Chevy C2500 Truck Chevy C2500 Truck V8 5.0L with 4L60E 4 Speed Automatic Transmission Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-1998Chevy C2500 Truck Chevy C2500 Truck V8 5.7L with 4L60E 4 Speed Automatic Transmission Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-2002Chevy Express 1500 Van Chevy Express 1500 Van V8 5.7L Under 8500LB GVW Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-2002Chevy Express 1500 Van Chevy Express 1500 Van V6 4.3L Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-2002Chevy Express 1500 Van Chevy Express 1500 Van V8 5.0L Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-2002Chevy Express 2500 Van Chevy Express 2500 Van V8 5.7L Under 8500LB GVW Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-2002Chevy Express 2500 Van Chevy Express 2500 Van V6 4.3L Under 8500LB GVW Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1998-2002Chevy Express 2500 Van Chevy Express 2500 Van V8 5.0L Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-1998Chevy K1500 Truck Chevy K1500 Truck V6 4.3L Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-1999Chevy K1500 Truck Chevy K1500 Truck V8 5.7L with 4L60E 4 Speed Automatic Transmission Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-1999Chevy K1500 Truck Chevy K1500 Truck V8 5.0L with 4L60E 4 Speed Automatic Transmission Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-1998Chevy K2500 Truck Chevy K2500 Truck V8 5.7L with 4L60E 4 Speed Automatic Transmission Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1997-1998Chevy K2500 Truck Chevy K2500 Truck V8 5.0L with 4L60E 4 Speed Automatic Transmission Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1999Chevy Silverado 1500 Chevy Silverado 1500 V8 4.8L Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1999Chevy Silverado 1500 Chevy Silverado 1500 V8 5.3L Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1999-2001Chevy Silverado 1500 Chevy Silverado 1500 V6 4.3L Downstream Upstream O2 Oxygen Sensor 4 Piece Set
2000-2002Chevy Silverado 1500 Chevy Silverado 1500 V8 5.3L (excluding Canada Built Models) Downstream Upstream O2 Oxygen Sensor 4 Piece Set
2000-2002Chevy Silverado 1500 Chevy Silverado 1500 V8 4.8L (US Built Models) Downstream Upstream O2 Oxygen Sensor 4 Piece Set
2002Chevy Silverado 1500 Chevy Silverado 1500 V6 4.3L (8th Vin Digit X) Downstream Upstream O2 Oxygen Sensor 4 Piece Set
2001Chevy Silverado 1500 HD Chevy Silverado 1500 HD V8 6.0L Downstream Upstream O2 Oxygen Sensor 4 Piece Set Passenger Side
1999Chevy Silverado 2500 Chevy Silverado 2500 V8 5.3L Downstream Upstream O2 Oxygen Sensor 4 Piece Set
2000Chevy Silverado 2500 Chevy Silverado 2500 V8 5.3L (excluding Canada Built Models) Downstream Upstream O2 Oxygen Sensor 4 Piece Set
2000-2002Chevy Suburban 1500 Chevy Suburban 1500 V8 5.3L (excluding Flex Fuel) (US Built Models) Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-1999Chevy Suburban C1500 Chevy Suburban C1500 V8 5.7L with 4L60E 4 Speed Automatic Transmission Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-1999Chevy Suburban C2500 Chevy Suburban C2500 V8 5.7L with 4L60E 4 Speed Automatic Transmission Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-1999Chevy Suburban K1500 Chevy Suburban K1500 V8 5.7L Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996Chevy Suburban K2500 Chevy Suburban K2500 V8 5.7L Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-1999Chevy Tahoe Chevy Tahoe V8 5.7L with 4L60E 4 Speed Automatic Transmission Downstream Upstream O2 Oxygen Sensor 4 Piece Set
2000-2002Chevy Tahoe Chevy Tahoe V8 5.3L (8th Vin Digit Z) (US Built Models) Downstream Upstream O2 Oxygen Sensor 4 Piece Set
2000-2002Chevy Tahoe Chevy Tahoe V8 4.8L (US Built Models) Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-1999GMC C1500 Truck GMC C1500 Truck V8 5.0L with 4L60E 4 Speed Automatic Transmission Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-1998GMC C1500 Truck GMC C1500 Truck V6 4.3L Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-1999GMC C1500 Truck GMC C1500 Truck V8 5.7L with 4L60E 4 Speed Automatic Transmission Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-1999GMC C2500 Truck GMC C2500 Truck V8 5.7L Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-1998GMC C2500 Truck GMC C2500 Truck V8 5.0L Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-1999GMC K1500 Truck GMC K1500 Truck V8 5.0L Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-1998GMC K1500 Truck GMC K1500 Truck V6 4.3L Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-1999GMC K1500 Truck GMC K1500 Truck V8 5.7L Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-1999GMC K2500 Truck GMC K2500 Truck V8 5.7L Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1998GMC K2500 Truck GMC K2500 Truck V8 5.0L Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-1997GMC Safari GMC Safari V6 4.3L Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-2002GMC Savana 1500 Van GMC Savana 1500 Van V8 5.0L Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-2002GMC Savana 1500 Van GMC Savana 1500 Van V8 5.7L Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-2002GMC Savana 1500 Van GMC Savana 1500 Van V6 4.3L Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-2002GMC Savana 2500 Van GMC Savana 2500 Van V8 5.0L Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-2002GMC Savana 2500 Van GMC Savana 2500 Van V6 4.3L Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-2002GMC Savana 2500 Van GMC Savana 2500 Van V8 5.7L Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-2002GMC Savana 3500 Van GMC Savana 3500 Van Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1999-2001GMC Sierra 1500 GMC Sierra 1500 V6 4.3L Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1999GMC Sierra 1500 GMC Sierra 1500 V8 4.8L Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1999GMC Sierra 1500 GMC Sierra 1500 V8 5.3L Downstream Upstream O2 Oxygen Sensor 4 Piece Set
2000-2002GMC Sierra 1500 GMC Sierra 1500 V8 4.8L (US Built Models) Downstream Upstream O2 Oxygen Sensor 4 Piece Set
2000-2002GMC Sierra 1500 GMC Sierra 1500 V8 5.3L (excluding Canada Built Models) Downstream Upstream O2 Oxygen Sensor 4 Piece Set
2001GMC Sierra 1500 HD GMC Sierra 1500 HD V8 6.0L Downstream Upstream O2 Oxygen Sensor 4 Piece Set Passenger Side
1999GMC Sierra 2500 GMC Sierra 2500 V8 5.3L Downstream Upstream O2 Oxygen Sensor 4 Piece Set
2000GMC Sierra 2500 GMC Sierra 2500 V8 5.3L (US Built Models) Downstream Upstream O2 Oxygen Sensor 4 Piece Set
1996-2000GMC Yukon GMC Yukon V8 5.7L Downstream Upstream O2 Oxygen Sensor 4 Piece Set
2000-2002GMC Yukon GMC Yukon V8 4.8L (US Built Models) Downstream Upstream O2 Oxygen Sensor 4 Piece Set
2000-2002GMC Yukon GMC Yukon V8 5.3L (US Built Models) Downstream Upstream O2 Oxygen Sensor 4 Piece Set
2000-2002GMC Yukon XL 1500 GMC Yukon XL 1500 V8 5.3L (US Built Models) Downstream Upstream O2 Oxygen Sensor 4 Piece Set
Part #: 1AEEK00816


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Get it in: 2 - 4 Business Days

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How-to Video:

(03:57 min)