Dodge Promaster Dual Alternator Kit with 280XP High Amp Alternator for 2014-2021 3.6L Gas Engines using AGM Batteries
Dodge Promaster Dual Alternator Kit with 280XP High Amp Alternator for 3.6L Gas Engines

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Price: $2,129.95

Product Code: PK9862-280XP-AGM


Auxiliary Battery Type

External Regulator

Add to manually set voltage:


Dodge Promaster Dual Alternator Bracket Kit

(Using only AGM Batteries)

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. This kit fits 2014-2021 3.6L Gas Engines using AGM Batteries.

Our Dual Alternator brackets are precision CNC waterjet cut from solid 3/8" STEEL plate. Then we coat them with a super durable powdercoat finish so they stay looking and working great! With our dual alternator kit, the mounting plate is securely fashioned to the engine with 4, 10MM grade 12.9 bolts which makes installation very simple and secure.


What does your dual alternator kit come with?

  • Dual alternator mounting bracket
  • 280XP High Amp Alternator
  • OEM GM idler pulley for the best serpentine belt life. Our competitors use alternator bearings which can cause extreme heat and destroy serpentine belts.
  • Gates Green Stripe serpentine belt.
  • ALL mounting hardware needed to install the bracket and alternator to the vehicle.

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.

We are very proud to say, this dual alternator kit is 100% designed and manufactured in the USA!

Average Customer Review: Average Customer Review: 5 of 5 5 of 5 Total Reviews: 1 Write a review.

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  0 of 0 people found the following review helpful:
Reviewer: Doug H from Charlottesville, VA  
I ordered this on a monday and received it on wednesday. Wow! My order came with a detailed installation guide equipped with photos and i called into their phone number and they were able to email me a hard copy. Straight forward and genuinely designed.  Had the kit installed and the 280 amp alternator is keeping my batteries happy!  Good job Nations!

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