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Your cart is empty.An ACDelco GM Original Equipment Oxygen (O2) Sensor is a GM-recommended replacement for your vehicle’s original component, and is a special feedback sensor on your vehicle’s exhaust system. This sensor measures the proportion of oxygen in the exhaust gases. Using this measurement, the engine management computer can adjust the air/fuel ratio near the optimum value of 14.7:1. At this ratio, engine performance, emissions, and fuel economy are all optimized. This original equipment oxygen sensor has been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors. Popular Fitments: 2003-2005 Cadillac Escalade V8
JT
Reviewed in the United States on February 5, 2025
Originally put in cheaper knockoffs and the engine light in my avalanche failed to reset on the two driver side sensors. Bought these and noticed immediate improved performance and no more check engine light.These worked great for me. 👍
Bulmaro Chavez
Reviewed in the United States on February 25, 2025
Sensor muy bueno para mi troca
Panner
Reviewed in the United States on February 19, 2025
Scanner said o2 Sensor, Bank 2, Pos 2. Bought WorkPro 7-pc sensor-wrench set. R & R Sensor. Happy Trails.
Okn
Reviewed in Saudi Arabia on July 16, 2024
We bought this product and the product was delayed 10 days. After the product arrived, we discovered that it was not original, and it is possible to buy 4 of the same product at the same price.
Alan P.
Reviewed in the United States on March 9, 2024
This fit my sons Silverado with 5.3L LM7 enginge great. Easy to install (I got lucky with the removal of the old one) and electrical connector was correct. Exact replacement for this truck. Cleared the P0161 code that we were getting and fixed the engine surging while idling problem we were having.
Sheri Miller
Reviewed in the United States on February 21, 2024
I replaced both the front 02 sensors on my 2005 GMC Sierra and these fit perfectly and turned off my check engine lightI would highly recommend getting the 02 sensor removal attachment it’s about 10$ and makes the job 10 times easier the nut size is 7/8 or a 22 mm
DocHolliday
Reviewed in the United States on November 20, 2024
This oxygen sensor came in a Genuine GM package and was exactly what I hoped for. I know AC Delco is also an OEM product but Genuine GM is preferable in my book. I couldn't be happier. After reading reviews that some buyers had received used parts, I was skeptical about ordering from Amazon. Glad I pulled the trigger on this one.
William R Claggett Jr
Reviewed in the United States on October 22, 2024
Perfect fit works as designed
Kim
Reviewed in Canada on September 25, 2023
Worked perfectly no codes
Dr.feras.aburub
Reviewed in the United Arab Emirates on November 16, 2023
Perfect fit
Jaime Castillo
Reviewed in the United States on January 7, 2023
My Avalanche 2005 Z71 was better on the highway!!!!!
Zach c.
Reviewed in Canada on February 18, 2020
Perfect
Lance Regimbal
Reviewed in Canada on April 22, 2016
works 100%..fits 100% same plug as originals..slight update they have a nipple looking end instead of the end shown in picture..
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