370-amp Billet Elite Series Large Case alternator for early 5.9L Cummins - 1 Wire Turn On

370-amp Billet Elite Series Large Case alternator for early 5.9L Cummins - 1 Wire Turn On

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Most alternators are custom built to order. Standard build time is 2-3 weeks. If you need an alternator sooner than that, please contact a sales associate to see if any in-stock options are available.
16 LBS
The long-awaited BILLET Large Case Cummins Mechman alternator is finally here! After listening to our customers' needs and usage, we've developed the first and only LARGE CASE style alternator for the unbreakable 5.9 Cummins engines!

Why is a large case alternator better? Amperage output at idle/low RPM's, right where diesel engines like to operate the most! With nearly 200 amps just at idle and over 370 amps at driving RPM's this alternator is the most power single alternator you can install in the factory location. We're even able to use a near stock sized pulley so you don't even need to change your belt with the installation of this part number. It's a win after a win after a win!

This version of the billet part number is for the customers that have performed a Cummins swap into another vehicle. Many times, when doing motor swaps with vehicles that use external regulators it's a pain to source or reuse the older lower voltage and let's just be honest, less reliable external boxes. We take the guess work out of all of that and use the same GM 4pin style regulator instead of the standard build part number terminal block regulator. This allows the alternator to be turned on and off with a simple single wire connected to a 12v key on/off source from the vehicle. These internally regulated options will range in voltage from 14.6 to 15 volts (temperature based as per std operation).

This also opens up the options of our voltage boosting harnesses found in the harness section on the website making this an extremely useful modification for future or unique applications requiring simple, quick and easy voltage adjustment.