Part Type: Engine Cooling Fan Clutch. Notes: Standard Rotation; Optional Non-Thermal Fan Clutch;. 1974 Dodge W300 Pickup Engine: 3.7L L6; Standard Rotation; Optional Non-Thermal Fan Clutch;. 1974 Dodge W300 Pickup Engine: 5.2L V8; Standard Rotation; Optional Non-Thermal Fan Clutch;.