Sinister Diesel 2003-2007 5.9L Dodge Cummins, 320 Amp OEM High Output Alternator – SD-ALT-5.9-03-320


Product Highlights:

Sinister Diesel 320 Amp OEM alternators are trusted by many Diesel repair shops and stores to be the “fix all solution” for the Cummins 5.9L alternator failures which may cause electronics failures due to low voltage from the lack of alternator power that comes from the Ford factory. Sinister Diesel’s proudly uses brand new OEM alternator components such as the Stator, Rotor, Rectifier and Regulator to give our customers piece of mind to match our standard of quality. Our alternator will be a direct fitment without any modifications needed. We can proudly stand behind all of our alternators with a 1-year warranty.

Vehicle Fitment

2003-2007 Dodge Cummins 5.9L

Key Features

  • Cast Aluminum Chassis
  • Powder Coated in Sinister Blue
  • Upgraded High Output Regulator
  • Upgraded High Temperature Bearings


  • High Output 320 Amp Alternator

Note: Because this product exceeds OEM specifications, you must include a *High Amp Wiring Upgrade Kit* (SKU CB-ALT-WIRE) at the time of purchase to maintain the Alternator warranty and prevent damaging the under-sized OEM wiring.

*Special Order. Please allow for additional shipping time.