international 574 or 2500A

[MossRoad]

looking for a diagram of master cylinder

Welcome to TBN. Don't know if this will help, but I have used this I.H. salvage yard as a resource when I had my 2500B. Give them a call. Maybe they can help.

https://www.batescorp.com/

 

[MossRoad]

574 thru 695 :: International 574 :: Brake Parts :: Master Cylinder

 

[MossRoad]

http://www.tractorbynet.com/forums/...international-tractor-ih-574-brake-system-jpg

 

[MossRoad]

There may be a diagram on this ebay page.
N14784 New Case Brake Master Cylinder Repair Kit w 1" Bore 570 580K 585 588G | eBay