My Auto Parts 337954 A/C Selector Switch 1. This part generally fits GMC vehicles and includes models such as Sierra 1500 with the trims of Base Crew Cab Pickup 4-Door,Base E xtended Cab Pickup 4-Door,Base Standard Cab Pickup 2-Door,SLE Crew Cab Pickup 4-Door,SLE Extended Cab Pickup 4-Door,SLE Standard C ab Pickup 2-Door,SLT Crew Cab Pickup 4-Door,SLT Extended Cab Pickup 4-Door.
