WD, DCM and Donor Drives

[enter8]

I'm looking for a donor drive for a black 4TB WD drive. The DCM starts with "EB"

Assuming that E is the motor and B is the case, if I wanted a donor motor, I'd have to find another black drive with a DCM that starts with EB, right? Or do I have to find my specific model (wd4003fzex-00z4sa0) with a DCM that starts with EB?

If all I need is a new motor, can I swap out only the motor? Looking at my drive, I don't think the motor comes out of the case.

[Lardman]

I can't remember the last 3.5" drive I saw which needed a new motor which hadn't be subjected to physical trauma.

[pepe]

@enter8:
if you were able to manage such problem you would know the answer to your questiion.
It does not work the other way though.

pepe