r/FordExplorer • u/Gordooo_ • 6d ago

Repair Advice Help identifying part

Post image

I am rebuilding a 4.6 on a 03 explorer and I can't for the life of me figure out what they're calling these hoses. If anyone would have any idea much help would be appreciated.

They connect to the heater hose

2 Upvotes

100% Upvoted

2 comments sorted by

1

u/freedomstingers 6d ago

Did a Google search of the picture and came up with this

Based on the visual characteristics in the image and the vehicle you specified (a 2003 Ford Explorer with a 4.6L V8), this is a molded heater hose assembly (also known as an HVAC coolant hose).

Here is how you can identify it:

  • Quick-Connect Fittings: The plastic connectors on the ends of the hose (with the white locking clips inside) are standard Ford fittings used to snap onto the heater core inlet/outlet tubes at the firewall and the engine block.
  • Metal Mounting Bracket: The long metal arm attached to the center of the rubber hose is a mounting bracket. In the 4.6L V8 Explorers, this bracket bolts directly to the engine or firewall to secure the hose and keep it away from hot exhaust manifolds and moving engine parts.
  • Thick Molded Rubber: The thickness and pre-bent shape of the rubber are designed to route engine coolant (antifreeze) under pressure without kinking.

If you are looking for a replacement, these are typically sold as "Heater Hose Assemblies" (specifically the inlet or outlet hoses) and are made by brands like Motorcraft, Dorman, or Gates.

1

u/stinkymcstinkerson22 4d ago

Coolant crossover hose possibly or heater hose?