High Output Alternator for Ram 1500 2500 3500 (2011-2016) 5.7L

High-Amp Direct Replacement Alternator for 2011-2016 Ram 1500, 2500, 3500 (DS/DJ/D2)

What it Does: The high output 250 amp alternator replaces the undersized factory charging unit on the 2011-2016 Ram 1500, 2500, and 3500 to supply stable, continuous DC amperage for heavy electrical accessories, aftermarket electronics, and high idle loads.

The Stock Ram 1500, 2500, 3500 Charging Capacity Limitations

Factory alternators equipped on the 5.7L HEMI V8 (Eagle architecture) platform are engineered strictly for baseline vehicle power requirements, typically outputting between 160 to 180 amps. When owners add high-draw electrical loads—such as winches, snow plows, commercial inverters, off-road lighting arrays, or high-RMS audio amplifiers—the stock stator windings rapidly experience thermal saturation. This causes excessive voltage drops below 12.8V at idle, premature battery degradation, dimming headlights, and stator diode failure due to prolonged heat soak under constant demand.

The Engineering Solution

This heavy-duty 250-amp unit solves voltage drops by incorporating high-conductivity, dense copper hairpin stator windings matched to a precision-balanced rotor. It integrates heavy-duty diodes on an oversized heat sink along with high-temp sealed bearings to endure prolonged high-RPM use and extreme engine bay thermal cycles. An internal solid-state voltage regulator ensures uniform charging between 13.5V and 14.5V across all RPM ranges. Built to directly replace OEM units like 56028697AM and 11299N, it retains the OE bracket geometry, OE pulley dimensions, and factory plug configuration with zero wiring harness modifications required.

What's Included

• 1 x 250 Amp High Output Alternator

Technical Specifications

Compatibility

• 2011-2013 Ram 1500 5.7L Hemi V8 (DS)
• 2011-2016 Ram 2500 5.7L Hemi V8 (DJ)
• 2011-2016 Ram 3500 5.7L Hemi V8 (D2)

Frequently Asked Questions & Fitment Warnings

Does this fit the DS, DJ, and D2 1500, 2500, 3500?

Yes, this is a direct bolt-in fit for the 2011-2013 Ram 1500 and 2011-2016 Ram 2500/3500 equipped with the 5.7L HEMI V8. Note: Does not fit 2014+ Ram 1500 models or vehicles equipped with the 3.6L Pentastar, 4.7L V8, or 6.7L Cummins Turbo Diesel engines.

Do I need to upgrade my wiring when installing this 250A alternator?

While this alternator utilizes the factory plug and harness, performing a "Big 3" heavy-gauge charging wire and chassis ground upgrade is strongly recommended to safely deliver maximum current without resistance.

The Ram Workhorse Standard

Engineered for the continuous demands of severe-duty towing, heavy job-site payload cycles, and backcountry recovery operations, this high-output alternator delivers rock-solid electrical reserve capacity whenever your truck is working hardest.