If the throttle cable and stop solenoid hook up, it will work fine unless it has a different type of cam gear.
The bosch numbers on the pumps might give a clue. Pictures could also help reveal differences.You can measure the camplate curves on them fairly easily, without taking them apart : http://www.vwdiesel.net/forum/index.php?topic=33196.msg309999#msg309999
Well, I can't find any more info (clearly it's a 9mm plunger and a four port), but if there aren't any differences externally, I'd run it just the same.