On which end, the manifold or the water pump???? I haven't seen anyone that handles the little metal inserts for awhile now. NAPA guy got me one from one of his rebuilder jobbers awhile back. If all else fails, take out the broken piece, drill and tap with the correct size pipe thread, screw in a pipe nipple and put the bypass hose back on.

Matt, he is talking about the metal tube the hose goes on, not the hose itself.....