My friend has a mid 80's wagoneer with a 2.5 4 banger and a 5 speed, the only problem is we cant find anything about it anywhere. It needs a fuel pump and he doesnt know which one to get to fit. Did the come with the 2.5? or maybe did somebody just dropped one in?

Yank it out, match it up. Simple...
Maybe??? I dunno...

With a 2.5 in it, its probably a midsize Waggy. The midsize Waggy is basically an XJ with four headlights and a different trim package.
Shop for a fuel pump for the same year Cherokee XJ with the 2.5.