Ford F10Y-18472-D HVAC Heater Hose (also listed as F1OY-18472-D) is a Ford heating-system hose used to route coolant in the vehicle’s climate-control circuit. It connects the engine to the heater core, enabling the flow of hot coolant to produce cabin heat. The two Ford part numbers—F10Y-18472-D and F1OY-18472-D—are provided for accurate identification and replacement.
