in my experience they all have had 3 numbers and a letter which indicates the end of the vw part number like XXX XXX 028F or it may indicate 028 xxx xxxf. there is a thread on here somewhere that has a bunch of the numbers listed. i used it to id my cam which says 028D. google sucks these days so i can't find it again.
So its an AHU/ALH cam...looks like the profile is quite close to AAZ but with longer durations...has anyone tried these on AAZ? Or 1.6? Its really getting hard to find low km cams...I have maybe a dozen 1.6 cams and all fairly significant lobe wear and ghe grooves cut by the oil seal are pretty substantial as well.