Fan Clutch (Thermal)
🛠 Fits: 1988-1998 C/K 1500 & 2500 (gasoline engines)
Thermal fan clutch for the mechanical cooling fan
15-4694ACDelco (OEM)
2747Hayden
📝 If the fan roars constantly or freewheels when hot, the clutch is done. Hayden 2747 is the popular severe-duty upgrade for towing.