Keep coolant moving to the heater core and cabin warmth on tap with the Gates HVAC Heater Hose 23992. It drops in as a direct-fit replacement for the 2007-2010 Ford F-250 Super Duty, F-350 Super Duty, F-450 Super Duty, and F-550 Super Duty, serving the lower heater hose position (HEATER, LOWER). A heater hose carries engine coolant between the cooling system and the heater core, so a cracked, swollen, or leaking original can leave you chasing coolant loss and weak cabin heat.
- Job: routes engine coolant through the lower heater circuit to and from the heater core.
- Position: cataloged as the lower heater hose for the listed applications.
- Signs it may need replacing: visible coolant seepage at the hose, soft/spongy or hardened, cracked rubber, or reduced cabin heat linked to a leaking hose.
If a failed lower heater hose is the cause of your coolant leak or heat complaint, this replaces it. Confirm your vehicle in the Buyer's Guide tab before ordering.
Interchange: 18462L · 70028 · F10233 · 7C3T 18D334 CD · 7C3T18D334CD · 7C3Z 18472 C · 7C3Z18472C · KH 639 · KH639 · 16651
Manufacturer part number 23992.
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What does this heater hose do?
It routes engine coolant through the lower heater circuit, carrying coolant to and from the heater core so the HVAC system can deliver cabin heat.
Which vehicles does the Gates 23992 fit?
It's a direct-fit replacement for the 2007-2010 Ford F-250, F-350, F-450, and F-550 Super Duty. Check the Buyer's Guide tab to confirm your vehicle.
Which position is this hose?
It is cataloged as the lower heater hose (HEATER, LOWER position) for the listed Super Duty applications.
How do I know if my heater hose needs replacing?
Look for coolant seepage at the hose, rubber that is cracked, hardened, or soft and swollen, or reduced cabin heat tied to a leaking hose. Diagnose the leak source before replacing.
What numbers does this hose interchange with?
It interchanges with 18462L, 70028, F10233, 7C3T 18D334 CD, 7C3Z 18472 C, KH 639, and 16651. The manufacturer part number is 23992.
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