This is a Prestolite Vacuum Chamber.  Part # 6-84 (IDN-3023RS).

Fits the following International Harvester (IHC) distributors:

Prestolite #s:

IDN-4001 (44-749)

IDN-4001B (44-792)

IDN-4002 (44-788)

IDN-4002B (44-751)

IDN-4010 (44-804)

IDN-4102B (44-758)

IDN-4102D (44-783)

IDN-4102H (44-764)

IDN-4102J (44-765)

IDN-4201 (44-766)

IDN-4202 (44-768)

IDN-4202B (44-770)

 

IHC #s:

1974-1980 IHC truck (4 cylinder) - 484776C91, 491344C91, 496003C91, 497600C91
1963-1980 IHC truck (8 cylinder) - 484778C92, 484780C91, 484781C91, 484783C92, 491346C91, 491353C91, 491357C91

Will combine shipping with multiple purchases!  Will ship internationally using Ebay's Global Shipping Program.  Please note Ebay will charge and collect sales tax based on your state.