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Powermaster High Output Alternator
Fits 2001-2007 Silverado/Sierra 2500HD/3500HD
Just by adding a few electrical accessories such as driving lights, auxiliary cooling fans, or a mega-sound system you can quickly exceed the capacity of your alternator. Powermaster has the solution - high output alternators that bolt in place of the OEM alternator. They feature a slightly larger case that bolts to all factory brackets and uses the same belt. Powermaster has re-engineered the power curve to deliver up to 50% more output at idle. Every Powermaster high output alternator is tested and comes with a proof of performance tag. This alternator has a 4-pin voltage regulator and a 6-groove serpentine pulley.
Options (Highly Recommended):
Charge Wire (Part# 1-54-2.1DM)
Ground Wire (Part# 1-742-4g)
2 ft of 4 gauge wire with 5/16” and 3/8” eyelets