What is this on my 1945 MB?

[TF Coyote]

I am in the process of doing some overhaul on my 1945 MB. There is a device under the voltage regulator and parallel to the generator that I do not know the function of. A hose runs from it, up and along the firewall then down to the intake manifold. The hose is collapsed inside, so I don’t think it was functioning recently.
Can anyone tell me what this is? If it does not have a good use, I will likely remove it entirely. The pictures are not that good.

[JIMN]

Is the hose the only thing attached to it?

[TF Coyote]

I think I have figured it out: it is a hydrovac brake booster. Now I need to decide if I should rehab it or remove it.

[Jim Thomason]

Hydraulic brake boosters are nice--but expensive to rebuild or replace. You might go to Ebay and lookup item 254140724053 . That will show you a line of units made in Australia that are affordable. Study the units and SHIPPING cost to find what is applicable to your jeep. Hope this is helpful. Happy Easter, Jim T

[signsup]

I see no benefit to having a hydrovac on a jeep. They are on WWII trucks to assist with weight and load braking. Don't see how they will assist a jeep with braking unless Bubba was hauling a loaded trailer all the time.

[dpcd67]

Should not even be a question; REMOVE IT!!!

[Tim52]

Looks like to me an early flux capacitor.

[Marty, SoCal]

They help with braking effort, might be important if you have some disability.

If you remove it, you can try to sell it here on the "G" , someone might have a use for it!

[bjulie]

Mine had this too, but my granddad had it removed before he gave it to me. Said would work better that way. So I guess it's your call and preference.