Part Type: Engine Cooling Fan Clutch. Notes: Reverse Rotation; Severe Duty Thermal Fan Clutch; w/ A/C;. Fan Clutch, Thermal. Reverse Rotation Severe Duty Thermal Fan Clutch. Fan Clutch. 1996 Chevrolet K1500 Engine: 4.3L V6; Reverse Rotation; Severe Duty Thermal Fan Clutch; w/ A/C;.