Well, the subject says it all.
The PO put the WRONG pulley on my car. VAGCAT and ETKA are being of no help, not telling me what's an AC pulley and what's a non-AC pulley. They're telling me what alternator they go on, though, so is there a different ALTERNATOR for cars with AC, then?
From pictures, I've seen that the AC pulley is smaller in both diameter and width.
So, what's the part number?