High Output Alternator for RAM 2500 (2017-2019) 6.7L

High-Amp Heavy-Duty Alternator for 2017-2019 RAM 2500 (DJ)

What it Does: The 350-amp high-output alternator replaces the factory charging unit on the 2017-2019 RAM 2500 to deliver sustained 12-volt electrical power under heavy current draw without suffering voltage drop.

The Stock RAM 2500 Electrical Bottleneck

Factory charging systems on the DJ chassis platform are engineered around standard factory electrical demands, delivering limited surplus amperage. When outfitted with severe-duty equipment—such as commercial winches, hydraulic plow units, high-wattage aux lighting, or onboard inverters—the factory alternator cannot sustain operational voltage at low RPMs. This creates parasitic draw on dual-battery banks, leading to thermal stress on factory diode trios, rapid stator winding breakdown, premature battery sulfation, dimming cab electronics, and eventual low-voltage engine control limp-modes.

The Engineering Solution

Engineered for high-amperage endurance, this 350A drop-in unit features heavy-gauge, high-temperature copper stator windings wrapped to reduce internal resistance and heat soak. A dynamically balanced rotor supported by heavy-duty sealed bearings eliminates rotational drag and harmonic vibration across the Cummins powerband. Paired with a heavy-duty internal voltage regulator, it stabilizes output between 13.5V and 14.5V across all operating temperatures. Direct factory plug-and-play architecture maintains OEM mounting points, original serpentine belt alignment, and stock wiring harness pinouts for seamless drop-in installation.

What's Included

• 1 High Output 350-Amp Alternator

Technical Specifications

Compatibility

• 2017 RAM 2500 6.7L Turbo Diesel
• 2018 RAM 2500 6.7L Turbo Diesel
• 2019 RAM 2500 6.7L Turbo Diesel

Frequently Asked Questions & Fitment Warnings

Does this fit the DJ 2500?

Yes, this is a direct fit for the 2017-2019 RAM 2500 equipped with the 6.7L Cummins ISB engine.

Do I need to upgrade the primary charging cables during installation?

While this alternator utilizes the factory connector and mounting points, upgrading the main B+ charge wire and chassis ground cables (Big 3 upgrade) is strongly recommended to handle full 350-amp throughput without resistance.

The RAM Workhorse Standard

Built to handle severe commercial duty cycles and heavy towing loads, this charging upgrade protects your dual-battery system from deep cycle degradation when powering demanding job-site and recovery accessories.