Review on High-Quality Blower Motor Resistor Complete Kit with Harness - Chevy, GMC Compatible - Silverado, Tahoe, Suburban, Sierra, Yukon XL - AC - Replaces OEM 15 81773, 89018778, 89019351 by Bill Gomez

So I just installed it and it's working now. Of course, almost everyone has been successful in most of them, at least at first. It seems something can happen anywhere in 30 days. . . some kind of failure. so let's see. I will edit if anything negative happens. The only thing of note is that it comes with butt joints, new bolts (in case you lost yours) and of course a spare seat belt which on many cars needs to be connected to the existing one. Mine is included (05 Tahoe). Of course with air conditioning. That's all well and good too, although the smallest connector wasn't small enough for the signal line. Even doubling the wire allowed it to slip out of either side. So I used one of mine here. Regardless for the price. If it lasts, it's a much better option than the ones that cost 4x more from GM, or 3x more from AZ or Adv Auto.