GMC fans from 2007 to 2014, fit 90s and 2000s models. They were installed on my 1993 GMC. Comes with its wiring harness for those who want to install it on 90s models, it's ready with the harness and installs directly. The first speed is with the AC, and the second speed is on a sensor. There is an issue with the motors, they need replacement or if you know someone who can repair them. The wiring harness is available and excellent, no issues with it. Serious buyers contact me privately.