The key number was only stamped on the passenger side door lock in my truck. I think each door lock has some attached piece that is backwards on the other door.

You can get a complete set of locks and keys from the parts desk. You can possibly order one lock by code number: they can give you keys by code.

If you know what you are doing, you can rearrange the tumblers from one or more door locks to make it work using your key.

97 T100 4x4
97 328i
95 540i restoration project