12V Promaster Dual Alternator

When you need more output than the factory alternator or a single High Output Alternator can handle, or want the safety and security of a secondary alternator, a Nations dual alternator bracket is the perfect solution.

Why run dual alternators?

What if you had a separate charging system dedicated to the additional accessory load? By running dual alternators you can do just such a thing, and doing so leaves the factory charging system intact doing what it was intended to do, running the vehicle while the secondary alternator carries the additional accessory load. By effectively doubling the available amperage of the vehicle, you can run more accessories with less worry, and all for about the same cost as a single high quality High Output alternator.