Part Type: Engine Cooling Fan Clutch. Notes: Standard Rotation; Severe Duty Thermal Fan Clutch; Fan Mounting Holes are 5/16 In. Standard Rotation Severe Duty Thermal Fan Clutch. Fan Clutch. 1988 Chevrolet K3500 Engine: 5.7L V8; Standard Rotation; Severe Duty Thermal Fan Clutch; Fan Mounting Holes are 5/16 In.;.
