Is there a metal nipple to replace plastic nipple on intake leading to heater core

Asked by Mar 04, 2018 at 12:01 PM about the 2003 Ford Crown Victoria

Question type: Maintenance & Repair

On the rear of the 4.6 motor there is a plastic nipple for the 3/4 inch heater
hose leading to or from heater core. This one crumbled like cardboard and I
now need to find a replacement, hopefully metal that can take the heat of an
engine. The only ones I found were for home water lines

3 Answers

120,145

Probably. Try your local auto parts store and hardware store.

I found 3/8 pipe thread with 5/8 barb for heater hose but the problem I see is the plastic manifold is stressed and nearly cracking. My concern now is that the manifold will crack completely, leaving me with no choice but to buy a new manifold. The outlet isn't much bigger than 3/4 inch altogether, the walls are very thin after tapping it out for threading the pipe fitting into it.

120,145

There is only so much you can do. Use teflon thread sealant (type in the bottle) and don't over tighten and hope for the best.

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