JM,
http://www.oichan.org/mods/alter/alter2.htm
Excellent tutorial(With High Quality Pictures) on Bosch 120 Amp Alternator
Self Reman.
(Yes it's from a VW...But Bosch is Bosch...)
The Rectifier is different,which makes the Output Terminals different.
your Voltage Regulator is in-cased in the Rear Black Plastic Cover.
This is BA's reman of a 143/150 amp V12 Type alternator:
http://v12uberalles.com/Alternator_Bearing.htm
[In Diesel Land ,We usually ignore that third spade type connector,It's for
the Tachometer and Mercedes Diesels use another source.]