Mystery master cylinder?

[MarcDeSoto]

I saw this MC on Ebay and was wondering what vehicle would a MC fit with only one outlet for the brake lines?   The seller says it fits 41 - 48 Mopars.  

 

 

[Dodgeb4ya]

Looks like 1941-42 single outlet. ...if it had the 1/8" pipe  fitting in the top of reservoir it would be for the 1949-54 booster brake cars.

Edited January 29, 2023 by Dodgeb4ya

[MarcDeSoto]

Does that mean that regular issue 41-42 cars had this single outlet which I'm guessing went to a junction connection with lines to the rear and front axles?  

[MarcDeSoto]

Checked my 42 DeSoto Parts List and you're right.  Pre-war MoPars had just a single outlet for brake lines at the MC.  

[sidevalvepete]

 

1938 version, right hand drive to boot...

[joecoozie]

I saw you posted for stuff on the AACA Forum(s), too.

I answered your post but I will pass this along anyway.

https://www.ebay.com/itm/124813855571?epid=20039143957&hash=item1d0f7c4b53:g:jekAAOSwCrFg8ciq&amdata=enc%3AAQAHAAAAsLl2p%2Ffmbd2f%2BTCm65yGBGnJsMp%2B1cYTwOTy07SAZQNIMEys9GYMdZUm%2Fgpan3Bem%2BptdPhfvHws0R77%2BkfB2oOFfBAjZo6WmOg13uoKKANP1yEKs%2FGiSTDeOgUXel8bElNqEJWIAx7F2DVJQz%2Fj2We26NDRON%2B0mV559YxdlXt1NNz3GMBqYCBloOZedz88NbNMVaLcmZ5OrUxwRHBZC%2FQgErN0v9BHaPKdj%2BOgZXtW|tkp%3ABk9SR8Kpzdi_YQ

[desoto1939]

Yes the 37-41 Mopar cars used the master cylinder that only had a single brake line coming out of the MC and then a metal line was run to the Brake switch connector that then split out the lines to the front brakes and a line to the rear break junction that was mounted on the top of the rear end and then this Y connector then split out to each rear brake drum.  Also in this Y connector you might also find the tube that had a cap on it to allow air pressure to be released from the rear end.

 

My 39 Desoto has a single brake line coming out of the end of the MC.

 

Rich Hartung