Mechman 320 Amp High Output Alternator for Ram 5.7L HEMI 2011 - 2019

• HIGH OUTPUT PERFORMANCE – Delivers over 180 amps at idle and 320+ amps while driving, providing substantial charging power for aftermarket electrical accessories and car audio systems.
• DIRECT FIT REPLACEMENT – Designed as a bolt-in upgrade for compatible Ram 5.7L HEMI applications with factory mounting locations and connections.
• HEAVY-DUTY CONSTRUCTION – Features advanced 6-phase hairpin stator technology and 12 press-fit diodes for durability, efficiency, and long service life.
• IMPROVED CHARGING CAPABILITY – Supports large amplifiers, lighting systems, winches, air compressors, and other high-current accessories while helping recharge batteries faster.

Mechman 320 Amp High Output Alternator for Ram 5.7L HEMI

• This listing includes: (1) Mechman 11477320 Alternator

Built for serious electrical demand, the Mechman 320 Amp High Output Alternator is the perfect upgrade for Ram trucks equipped with the 5.7L HEMI engine. Designed as a direct bolt-in replacement, this alternator delivers over 180 amps at idle and 320+ amps at cruising speeds, providing the power needed for high-performance car audio systems, off-road accessories, lighting, winches, and other demanding electrical upgrades.

Utilizing advanced 6-phase hairpin stator technology and 12 heavy-duty press-fit diodes, this alternator is engineered for exceptional efficiency, durability, and consistent output. Whether you're powering a competition audio build or simply need stronger charging performance than the factory unit can provide, this Mechman alternator delivers reliable current when you need it most.

Important Charging System Information:

This application uses a factory computer-controlled charging system. Charging voltage will continue to be regulated by the vehicle's ECU/PCM and will follow factory charging behavior. While this alternator significantly increases available amperage and charging capability, custom or fixed voltage output settings require ECU tuning.

Installation Notes:

• Direct bolt-in replacement for compatible Ram 5.7L HEMI applications


• Produces 180+ amps at idle


• Produces 320+ amps at cruising RPM


• Features smaller 1.75" pulley for improved low-speed output


• Slightly shorter serpentine belt may be required


• Not recommended for sustained engine speeds above 5,000 RPM


• Ideal for aftermarket audio systems and high electrical loads

Features:

• 320 Amp Maximum Output


• Over 180 Amps at Idle


• Advanced 6-Phase Hairpin Technology


• Heavy-Duty 12 Press-Fit Diode Design


• Direct Factory Replacement


• Improved Battery Charging Performance


• Designed and Built for High Electrical Demand Applications