Replace a worn or leaking coolant hose with this OEM Genuine Coolant Expansion Reservoir Lower Coolant Hose for the 2011–2014 Ford F-150 equipped with the 5.0L Coyote engine, part number BL3Z-8C350-A (KM5081). This hose is a direct replacement for the factory-installed lower coolant line connecting the expansion reservoir to the cooling system. Designed to Ford's exact specifications for fit, durability, and heat resistance, it ensures proper coolant flow and system reliability. This part is only compatible with vehicles originally equipped with this hose and installs easily without modifications.