I think it would be more reliable to get a new old stock or a reproduction copy.
I agree. While it may be a point of personal pride in rebuilding the original, its kind of like rebuilding the original spark plugs. While it may be done, but why ?
To have a jeep with all original or original appearing components.. Modern gages just don't look right in a restoration, especially those chrome bezel ones... And a properly restored original gage should function just as well and long as a new repro..
A NOS original temperature gage will bring pretty intense wallet drain,if you can even find one...I know of no supplier that has them.. so with so many old gages needing just the bourdon tube still out there, why not?
Now spark plugs are another thing.. You really cannot rebuild them to new condition... but Original, wrapped in cosmolene and waxed paper plugs for a WWII jeep are insanely priced on the auction sites..
Such is the difference between restorers and normal jeep guys who plan to use their jeeps as they were designed. While I do plan on restoring my 45 CJ2A down to the last little part, all original, my 3A with the Pinto motor is probably gonna give me a whole lot more fun and satisfaction, especially when I get to travel the Colorado trails with it..If I scratch it, Oh well, get out the rattle can. The 45 will get parade use,and probably just sit there and look nice. �Nuthin' wrong with either plan. �:)