High Output Alternator for RAM 3500 (2017-2022) 6.4L 6.7L

High-Amperage Direct-Fit High Output Alternator for 2017-2022 RAM 3500 (DJ/D2)

What it Does: The 350-amp high output alternator replaces the lower-capacity factory charging unit on the 2017-2022 RAM 3500 to deliver sustained electrical current for high-draw commercial equipment, winches, and auxiliary power systems without voltage sag.

The Stock RAM 3500 Factory Charging Limitation

Factory alternators on the heavy-duty RAM platform typically deliver between 180 and 220 amps. When running auxiliary winches, snow plows, commercial inverters, job site lighting, or aftermarket audio systems, the stock charging system suffers severe voltage drops at idle. Continuous heavy amperage draw overheats factory stator windings and stresses the stock diodes, resulting in premature charging failure, dimming headlights, slow starter cranking, and dead battery banks.

The Engineering Solution

Engineered for high-demand duty cycles, this 350-amp unit features heavy-gauge copper stator windings, a precision-balanced rotor, and premium sealed bearings to manage thermal expansion under continuous load. A heavy-duty internal solid-state voltage regulator stabilizes operating voltage between 13.5V and 14.5V. Built to original factory dimensions, it matches the OEM mounting points, serpentine belt pulley profile, and wiring harness plug for a direct bolt-in installation without bracket modifications.

What's Included

• 1x High Output 350-Amp Alternator (Part # 14027-350A)

Technical Specifications

Compatibility

• 2017-2022 RAM 3500 6.4L V8 HEMI
• 2017-2022 RAM 3500 6.7L I6 Cummins Turbo Diesel

Frequently Asked Questions & Fitment Warnings

Does this fit the DJ/D2 3500?

Yes, this is a direct fit for the 2017-2022 RAM 3500 equipped with the 6.4L HEMI or 6.7L Cummins diesel engines utilizing OEM interchange numbers 56029644AA and 56029644AB.

Should I upgrade my charging wiring when installing this unit?

Yes, while the alternator connects to the stock harness, upgrading the primary B+ charging wire and engine block grounds to 1/0 AWG cabling is strongly recommended to safely deliver full 350-amp output without thermal resistance.

The RAM Towing Standard

Engineered to meet the rigorous demands of heavy payload hauling, commercial fleets, and off-grid setups, this alternator maintains rock-solid charging voltage under extreme operating temperatures and maximum electrical load.