
Originally Posted by
Arfa Brayne
The Bosch/Lucas unit with the external rectifyer plate - the stator winding section looks like it is only about 18mm.
A 200amp alternator should be about 30mm thick, the one you have looks around a 40amp unit. Dunno if someone has pulled a swifty on you.
The rotor windings are fairly interchangeable up to a point and don't effect output much, but the size of the stator is where the power comes from.