High Output Alternator for Chrysler 300 (2005-2007) 2.7L

High-Amp 300A Heavy-Duty Alternator for 2005-2007 Chrysler 300 (LX)

What it Does: The 300-amp high output alternator replaces the factory charging unit on the 2005-2007 Chrysler 300 to eliminate electrical system voltage drop under heavy accessory and auxiliary power loads.

The Stock Chrysler 300 Electrical Bottleneck

Factory alternators on the **LX** platform produce marginal current at idle, typically rated around 140 to 160 amps peak. When secondary high-draw electronics—such as aftermarket audio amplifiers, air management compressors, or auxiliary lighting—are added, the stock unit suffers from severe thermal saturation. Stator winding heat reduces conductivity, causing system voltage to sag below 12.6V at curb idle. This voltage instability causes headlight flicker, strains the PCM electrical bus, and induces chronic lead-acid battery starvation.

The Engineering Solution

Engineered as a direct bolt-in for the **Chrysler 2.7L EER V6**, this 300A unit employs a high-efficiency hairpin-style stator and a heavy-duty 12-diode bridge rectifier. Premium heat-sinked avalanche diodes regulate excessive ripple voltage, while precision high-temp dual-sealed bearings prevent premature rotor shaft wear under high-RPM belt loads. Designed to replace factory units like OEM part number **04896803AA** and Denso interchange **421000-0251**, it delivers massive current reserve without requiring bracket modification.

What's Included

• 1x 300 Amp High Output Alternator

Technical Specifications

Compatibility

• 2005 Chrysler 300 Base / LX 2.7L V6
• 2006 Chrysler 300 Base / LX 2.7L V6
• 2007 Chrysler 300 Base / LX 2.7L V6

Frequently Asked Questions & Fitment Warnings

Does this fit the LX 300?

Yes, this is a direct fit for the 2005-2007 Chrysler 300 equipped with the **2.7L EER V6** engine.

Do I need to upgrade wiring when installing this 300A alternator?

Yes, performing a 'Big 3' wiring upgrade using 1/0 AWG power and ground cables is required to support the 300-amp capacity and prevent harness overheating.

The Chrysler Caliber

Built to handle extreme current demands on full-size rear-wheel-drive platforms, this alternator maintains stable voltage rail integrity under high mechanical and electrical loads.