Would alternator from '85 4kq fit an '87 4kq?

[Luis Felipe Patiño]

I still have not figured out the charging problem in my '87 4kq - now it's
not charging at all, but the dash indicator lights come on normally with key
ON but engine OFF.

Could still be the Hella regulator: brushes too thick/misaligned to seat
properly on the slip rings.

However, the slip rings are pretty grooved, so that could be (contributing
to) the problem, so I might need to fix that too.

A lister has a fairly new alt that he put on his '85 4kq at a decent price -
good enough for me to just buy it and try to see if that cures the problem,
but I need to know if it will fit my '87 4kq (the Audi part numbers are
different on the Parts Connection Catalog).

will it fit?

TIA

Luis