Can anyone confirm if this is an e21 booster?

[xx4xy1]

We are still sorting through exactly what the PO put in/on this car and hoping someone can help confirm what brake booster this is. It looks like an e21 one but the P/N doesn't match or come up on realoem or anywhere else. Any one know?
On the booster itself:


Sorry, not close up but in the car:

[haaken675]

perhaps it is a 944 booster. Try searching those number in google.

[xx4xy1]

perhaps it is a 944 booster. Try searching those number in google.

It has a BMW logo before the P/N so I'm pretty sure its not a Porsche part (also doesn't look like the photos I've seen of the 944 booster). I did google as well. Finally found one hit by searching with the ATE P/N which went to a dismantler selling what they said was an e21 booster with the same part number.

[haaken675]

Missed the BMW logo. I couldn't find the exact number but saw lots of ads come up for e2- boosters, so that's probably what you have. Probably a part number that was superceded by another one?

[xx4xy1]

Yeah, my thought as well, just thought I'd ask in case anyone could confirm.