Identifying an injection pump

[Lil'red]

I have an 84 3/4 ton with I believe an 83 engine in it, I have just removed the pump and there are many numbers on it, which one identifies the pump for a rebuilder or dealer, is it the DB0000 or the model six digit model #, thanks for any help, Liam

[Lil'red]

Is there a way to find what year engine you have? Thanks...

[gmctd]

WYSIWYG is the name o' the game, here - at one time, tho the DB2 number could help to pinpoint the vintage - post the DB2-xxx-xxxx number, fer starters

[Lil'red]

DB2829 4153, thanks again for any help, Liam