MPA Electrical 11379 Alternator - Primary or Upper

Remanufactured Alternator for Ram HD Trucks

MPA Electrical Part Number 11379 is a remanufactured 12-volt alternator built for Ram heavy-duty truck applications that use a Nippondenso-style charging system. It delivers 220 amps with an internal fan, clockwise rotation, an external regulator, and an 8-groove serpentine clutch pulley for the specified fitments.

Use this remanufactured alternator when you need a direct replacement for Ram 2500 and Ram 3500 models with the listed Nippondenso alternator configurations. The MPA Electrical remanufactured line focuses on restoring charging-system components to service for demanding truck use.

Key Features

• 220 amp output for high-demand charging systems
• 12-volt alternator with clockwise rotation
• Internal fan design
• External regulator configuration
• 8-groove serpentine clutch pulley
• Built for Nippondenso applications
• MPA Electrical Part Number 11379

Detailed Description

This remanufactured alternator is specified for Ram 2500 and Ram 3500 trucks across multiple model years, including single alternator and dual alternator system applications. It matches the listed Nippondenso 220 amp and Nippondenso-style charging setups, making it a practical replacement for trucks that rely on stable electrical output for towing, accessories, and everyday operation. Cross-reference part numbers include BBB Industries 11379 and OE references such as 4801313AB.

Compatible With Ram 2500 and Ram 3500 applications where the fitment notes call for a Nippondenso alternator, including primary and upper-unit positions on dual alternator systems. Part Number 11379 is also referenced under interchange numbers used for the same application family.

What It Helps Address

• Low charging output or battery warning lights
• Alternator noise or bearing-related charging issues
• Voltage instability in truck electrical systems
• Charging problems on Ram dual alternator setups
• Replacement needs for worn Nippondenso-style alternators

Installation Notes and Tips

• Verify the vehicle uses the listed Nippondenso alternator configuration before ordering.
• Confirm whether the truck is a single alternator system or a dual alternator system with a primary or upper unit.
• Match pulley style, rotation, amperage, and regulator type to the original unit.
• Inspect the belt, battery condition, and charging cables during replacement to avoid repeat failures.
• Check connector and mounting alignment against the removed alternator before installation.

Quality Assurance

MPA Electrical remanufactured components are rebuilt for replacement use in specified vehicle applications. This alternator is identified by Part Number 11379 and supported by listed interchange references for the same Ram charging-system fitments.