This outstanding large case elite series alternator features 6 phase Hairpin stator technology, twin rectifier plates, and 12 massive diodes for outstanding durability. In diesel applications, this unit can crank out as much as 180 amps at engine idle rpm, with 240 amps at cruising speed. This unit can be installed with the stock length belt, and uses the same beefy internal components as it's 370 amp big brother, to provide excellent durability in abusive applications.