42
The remaining alternator connections will vary based on which alternator is being
used. Choose the alternator that best represents the alternator found on your vehicle
from the on the next few pages and follow the instructions provided for your particular
alternator.
NOTES
General Motors SI Series Alternators
The 10-SI and 12-SI alternators are easy to identify. They will have an external
fan behind the pulley, the 12-SI having enclosed style fan blades, and a two pin
connection. This 2 pin connection can be seen on the middle image in the diagram
above. These
are also known as “Delco” or “Delcotron” alternators.
The two remaining wires, a 14 gauge black/red wire printed
#995 REGULATOR
BATTERY POWER
and a 16 gauge black/brown wire labeled
#914 ALTERNATOR
EXCITER
, will connect to the two posts on the back edge of the alternator.
Route the two wires to the numbered 1
& 2 terminals on the alternator and cut
to length. Strip ¼” of insulation from both
wires.
A factory style connector and terminals,
seen in the photo, have been provided
in the “ALTERNATOR” bag. Crimp a
terminal onto each of the two wires.
Insert the wires into the connector as
shown in the diagram on the next page.
When terminal pin-out is complete, plug the connector into the alternator.