Is this the Ford Industrial 300 engine ?

Ran across this place in a search that might be able to help.

http://stage.foleyengines.com/products/engine-products/ford-industrial-engines-and-ford-industrial-engine-parts

Also a link to the parts and service manuals for a Ford 300 which might get you a part number ?

https://www.smokstak.com/forum/showthread.php?t=94159

This place lists reman Ford Industrial starters ?

http://www.motorcityreman.com/foinst.html