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2006 F250 5.4...trying to find a replacement upper heater hose...its the one that comes from the heater core and has the valve built in (KH376/5C3Z-18663-DA)
It is discontinued from ford and have yet to find any aftermarket.
..although the truck is almost 20 years old, the 5.4 was available up to 2010,,,so figure there is still a fair amount out there...
Probuble could rig a standard hose eventually and route it to avoid any type of kink, but wondering if I should expect a aftermarket co to carry it or even LMC truck, or it's just a part of planned obsolesce.