Powermaster GM 12si style alternators feature excellent output at idle. 12si are one unit for 1 or 3 wire hookup. They fit most GM brackets from 1964-1989 and are a popular high output upgrade for 10DN & 10si alternators.
Powermaster 37294-360 GM 12si Original Look 1V pulley Baffle & cone 1-wire or 3-wire 100A at idle, 150A top end Brushed finish If using as OE 3-wire plug-in, you must have a dash light or resistor in line to avoid damage to the regulator
Related products
Sale!
Original price was: $125.00.$81.00Current price is: $81.00.
Sale!
Original price was: $135.00.$88.00Current price is: $88.00.
Sale!
Original price was: $90.00.$59.00Current price is: $59.00.
Sale!
Original price was: $135.00.$88.00Current price is: $88.00.
Sale!
Original price was: $240.00.$156.00Current price is: $156.00.
Sale!
Original price was: $90.00.$59.00Current price is: $59.00.
Sale!
Original price was: $125.00.$81.00Current price is: $81.00.
Sale!
Original price was: $219.00.$142.00Current price is: $142.00.