J2 Fabrication 370A Extreme Plus 2007.5+ Ram 2500/3500 6.7 Cummins



The J2Fab 6 phase hairpin alternator is our premium offering.  Rated at 370A, these 6phase units offer greater idle performance with a higher efficiency than other units available for your Ram Truck


  • 100% new components and direct bolt in case.
  • OEM Denso Regulator
  • Custom rotor/stator to decrease air gap to improve idle output.
  • Balanced rotor and 0 run-out slip rings to improve unit life.
  • Heavy duty 12-80A diode twin rectifier plates
  • Improved air flow to ensure long service life in severe conditions
  • NTN premium and NSK USA bearings.


If you select custom powdercoat colors – please remember to add your desired color into your order comments.  No Candies.

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Additional information

Additional information

Weight 17 lbs
Dimensions 12 × 12 × 12 in

Matte Black, Wrinkle Black, Custom Color, None

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Refund Policy
Due to the custom and many times built to order nature of J2Fabrication products we have an all sales final policy. Standard lead times unless otherwise specified on the product page or in discussion is 4wks. Any refund request granted is on a case by case basis at the discretion of J2Fab and may be subject to a 25% restocking fee. Orders cancelled before shipment are subject to a 15% cancellation fee. If you are looking to return a product for warranty work or maintenance, please email [email protected] with “RMA Request” in the subject line.