Description

The Powermaster GM 12SI 100 Amp Alternator supports both 1-wire and 3-wire operation, is internally regulated, and includes a single-groove V-belt pulley, delivering 100 amps with strong output even at idle.

Works as 1 or 3 wire operation
Internally regulated
Pulley included, single groove
V-belt style
100 amp with 70 amps at idle, and 90 amps at cruising speed