Details

• Brand:

  

  

• SKU:

  FR3Z-18472-C

• Other Names:

  Hose Heater Water, KH792

• Description:

  This is a heater water hose, the coolant line that carries hot engine coolant between the engine and the heater core so the HVAC system can produce cabin heat and so the defroster can clear the glass. Ford catalogs it as Hose - Heater Water under base number 18472B. Verified fitment covers the 2015-2019 Mustang with the 5.0L modular DOHC V8 and the 5.2L V8, in left-hand-drive rear-wheel-drive configuration, paired with the 10R80 ten-speed automatic, the 6R80 six-speed automatic, or the MT82 and 3160 six-speed manual transmissions. The hose is molded rubber with an integrated quick-connect fitting, shaped to clear the tight packaging of the Coyote engine bay, which is why a straight length of generic hose will not substitute. Owners typically go looking for this part when they find a sweet coolant smell in the cabin or under the hood, a slow coolant loss with no visible external puddle, wet residue or dried crusty coolant film at the firewall connection, steam at the front of the engine, weak or intermittent cabin heat, a heater that blows cold on one side, or an overheating condition brought on by a low coolant level. The rubber hardens, cracks and swells with heat cycling and age, and the plastic quick-connect can become brittle enough to snap during removal. Install on a cold engine only, relieve pressure at the reservoir cap before disconnecting, seat the quick-connect fully until it clicks and tug-test it, then refill and bleed the cooling system completely to the correct coolant specification. Air trapped in the heater circuit is the most common cause of no-heat complaints after this repair, so follow the full bleed procedure and confirm heat at the vents before returning the car to service.

WARNING: California Proposition 65

×

California Proposition 65

WARNING: Cancer and reproductive harm - www.P65Warnings.ca.gov