Allstar Performance 80505 | GM Alternator Chrome 100 Amp 1-Wire

Powermaster 17294 alternator. Features GM original look 12SI style, 100 amps, 12V, 1-wire/3-wire, single V-belt pulley, straight mount, aluminum case, chrome finish, fits GM, ensures efficient...

Powermaster 37861 alternator. Features CS130 style, 140 amps, 12V, 1-wire/3-wire, 6-rib serpentine pulley, left offset, aluminum case, chrome finish, fits GM, ensures efficient charging, sold as each.