1953 D47U main fuel line

remove and braze?
replace from salvage?
putta hunk a rubber hose over with some clamps.....it's not a pressure situation

I replace mine with hydraulic hose and fittings.

My D2 had/has a joiner under the floor plate - if yours has one, it might just need a retighten.. or not : )

I think copper is what the originals were made of, with the exception of war time where copper was spared as much as possible.

I think the biggest problem will be adapting to the inlet of the fuel transfer/lift pump. Seems like all the old Caterpillars used a bullet shaped ferrule that is soldered on the end of the copper line. That's probably why all of mine have a piece of fuel hose clamped over the ends of the remaining good sections of the original line.

Thanks everyone for the responses, I'll have to tear into her and see what I can do

My last D4 7U I made a new fuel line as by using 1/2" steel compression fitting at the pump to keep the bullet Cat end. Then to 3/8 hydraulic hose with pipe thread at the end to adapt to the fuel tank.

Believe the original lines were steel. You can remove the line, straighten, silver braze any crack. I do that for JD orchard tractors a few times a year.

Steel Lines I believe were used .
Wont melt and spray fuel every where in a belly guard fire.