On the suggestion of my mechanic (1997 on a Perkins 4-108) I took the old wasted piece to a plumbing supply and put together a few bronze water pipe parts to match the wasted one but only missing the water feed tube. I gave it to him and he welded the feed tube into the system. I installed it and wrapped it with insulation.

Worked better than the original and cost about $50.00 total. Of course that was 15 years ago. Probably a bit more today.