Hi,

Can some help me identify what type of Alternator this is?
I think it is a 10SI, but is it considered a 3 wire or 1 wire alternator?

There is one power terminal at the back that connects to the positive battery terminal.

There is a "double blade" terminal connection on the bottom/back side. One wire goes to the back terminal of the alternator (+), the other I am assuming goes to the dash for warning indicator.

Thanks in advance.

 

that is a 12 Si,probably 94amp version judging by the notched front housing.That is considered a 3 wire alternator.The 12 si is the same size and basic design as 10si,but has a different fan and a few other differences.

 

Thanks for the quick reply.