15284 Premium OE Fitment Oxygen Sensor - Compatible with Select Cadillac Escalade; Chevrolet Avalanche, Silverado, Suburban, Tahoe, Trailblazer EXT; GMC Envoy, Sierra, Yukon, + More

04 Yukon 5.3 non flex fuel, sensor works, switches as it should, harness is the correct length, but the pcm doesn’t seem to like the rate of its switching, it doesn’t misfire and runs just fine but still has a check engine light on for that specific sensor and I don’t care to fix it the light doesn’t bother me that much.

Perfect fit for Bank 2 oxygen sensors on a 2004 Chevy Silverado

I have a 2003 Chevy Avalanche Z71 and my check engine light was on. Used my code reader and found the O2 sensor was bad and which one it was. Ordered this one, installed it, and after driving for a while the check engine light went off.

Fit my 04 Silverado 1500 perfectly and cleared my p0420 cel. If you have the same code wait like a week after you clear, it the cel might come back but mine went away again after a few days. Cheaper the. Anywhere else also. I did order a 2nd one and it came looking slightly used not as good as the first one the cap was off as well

Replaced my absolutely mangled downstream sensor on the Bank 1 of the '04 Escalade. Very firm and solid construction, nothing about this sensor feels cheap! Fully recommend it for any Downstream replacement. Had to buy a more pricey Delphi sensor for my Upstream, because this product isn't available for the Upstream on Amazon. Currently purchasing my 2nd sensor, as the OEM Bank 2 sensors have finally bit the bullet after 20 years. I have a good feeling these new sensors will last just as long.

Cleared my p0420 on my yukon

Part came in much different design but plugs were correct. Threaded in without any issue. Cranked engine, no check engine light, been driving for 2 weeks no and no issues. Great value so far

Replacement was not too hard. I watched a few YouTube videos first. It's not complicated. On my driveway, I drove the vehicle up on my oil change ramps to give me room to get underneath the vehicle. I blocked the tires and put jack stands in place, for safety. I followed the YouTube instructions to locate and disconnect the plastic connector plug. I used a large adjustable end wrench to loosen and remove the sensor from the exhaust pipe. This O2 sensor came with the anti-seize lubricant already applied. No need to buy any. It took me about an hour, but I work slowly.

Very good product OEM fitment and build quality, used to solve lean condition in bank 1 causing overfueling, whole bank 1 misfire, and horrible fuel economy. Problem was immediately fixed after replacing the sensor

Works no issues 3 months in

Great price and shipped quickly. My 2005 Yukon XL seemed to run much better immediately, although the transmission blew (within 2 blocks?!?) as I was going for a test run to see how the new oxygen sensor was working. Engine does sound much better though..... :)

Good quality and price. 2004 GMC sierra 5.3l Had a code P0420. Changed the l/h downstream O2 sensor and it's good to go. The sensor body is larger than the original but fits and works well.

work great