DELCO ALTERNATOR 12 VOLT GM STYLE 2 WIRE
- Vendor: Wilson Auto Electric
- Type: Alternator
The standard workhorse alternator used for so many applications. One of our best selling units at an everyday fantastic price!
The 10SI has three terminals (including those with a 1 wire regulator). 12 Volt 72 Amps – c/w fan & pulley
The large “BATT” terminal which gets connected to your battery positive. (Or Terminal Post if your vehicle is so equipped).
And a dual terminal connector. (Repair pig-tails for this connector available at any autoparts store. Or, salvage with alternator if pulling the alternator from a vehicle).
The #1 Terminal. (Marked with a “1” on the case)
This terminal is used to connect to the dash warning light.
For the warning light, a lamp is wired in series with a switched voltage source. During normal operation the lamp stays off. If the regulator is damaged, the #1 terminal provides ground, and the warning lamp will light. Usually.
This terminal is also active on 1 wire regulator equipped 10SI alternators.
The #2 Terminal. (Marked with a “2” on the case)
This terminal is used to excite the 10SI into operation. (3-wire 10SI)
It is connected to the battery positive.
For simplicity you can connect the #2 connector pigtail directly to the “batt” terminal on the alternator.
The terminal is present on 1 wire regulators. Used only for those that require the stock connector to fit snugly.