Help with parts manual

[Command52]

What does this mean by UNIT A-
UNIT B- Need to order parts but Thank You Billy

[Glen]

Hi,
It looks like you are on the 6 volt starter page. The Unit A and Unit B are explained at the top of the descriptions, on the right side of the page, above number 1.
Unit A is the first starter used, the 1109603,
Unit B is the 2nd starter used, the 1109611, it says.
Below is the page.

http://www.farmallcub.info/manuals/cub_ ... 008-10.jpg

[tst]

The number that Glen is showing you is the delco ID # on the tag riveted to the starter housing, its easier to look up starter parts with that # as its used by more than a farmall cub