Review on Dorman Solutions 604 5155 Heavy Actuator by Ken Lawson

Did not work for the driver's side temperature control on a 2004 Suburban 1500 with dual zone manual temperature control. Installing the block caused other drives to crash - go into defrost mode, etc. It took me a while to figure out that this was causing problems elsewhere. I studied further and found that the pinout here is different than the original part. I may have misread the list but wanted to let you know that it doesn't work for this app. Won't be shooting stars as this seems like a good unit just make sure it fits your project.