The Genuine Fan Clutch 4C3Z-8A616-AA is a direct replacement part for Ford trucks made between 2003 and 2010. As an OEM product, it is designed to fit and function like the original part, ensuring optimal performance and reliability. Specifically designed for Ford vehicles, this fan clutch is a genuine part with the manufacturer part number 4C3Z-8A616-AA and replaces part number 3C3Z-8A616-AD. It is a crucial component for maintaining the engine cooling system in these specific Ford truck models.