If indeed the part number is correct, but the part doesn't match, then is was mislabeled. The Focus style, which is what it sounds like you got, has a different part number. So you might try to see if the dealer can get the part that should have come with that part number.
The other options would be to replace the entire cable set, swap to a Focus shift tower and get the other cable end needed at the same time, or, see if you can figure out how to put the Focus style attaching pins on your shift tower.
