1979-1986 GMC K2500 5.7L V8. 1988 GMC K2500 5.0L V8. Notes: Fan Clutch -- Standard Rotation; Optional Non-Thermal Fan Clutch. Notes:Fan Mounting Holes are 5/16". Ensure Proper FitTo confirm that this part fits your vehicle, enter your vehicle's Year, Make, Model, Trim and Engine in the Compatibility Table.
