MPA Electrical 13766 Alternator

Remanufactured Alternator for Ram 2500 and Ram 3500

MPA Electrical Part Number 13766 is a remanufactured 12-volt alternator built for select 1999-2000 Dodge Ram 2500 and Ram 3500 applications with a Nippondenso alternator. It delivers 136 amps and uses an 8-groove serpentine pulley for direct replacement service.

Key Features

• Remanufactured alternator from MPA Electrical
• 136 amps output for charging-system service
• 12-volt electrical system application
• Internal fan design
• Clock position: 2:30
• Clockwise rotation
• External regulator configuration
• 8-groove serpentine pulley
• Manufacturer reference: Nippondenso

Product Details

This MPA Electrical remanufactured alternator, Part Number 13766, is specified for 1999-2000 Dodge Ram 2500 and 1999-2000 Dodge Ram 3500 models with a Nippondenso alternator. The unit is built around a 136-amp output rating, 12 volts, internal fan cooling, clockwise rotation, and an external regulator setup. This part cross-references BBB Industries 13766 for the same application.

For buyers searching for a 1999-2000 Dodge Ram 2500 alternator replacement or a 1999-2000 Dodge Ram 3500 charging system repair, this remanufactured unit provides the key fitment and electrical specifications needed for a direct-match selection. Part Number 13766 is also referenced by OE-style interchange numbers 121000-4280, 19134310, 56027221AB, and 89037269.

Common Issues This Part Can Help Resolve

• Low battery charging caused by alternator output loss
• Battery warning light related to charging-system faults
• Dim lights or electrical instability at idle
• Overworked or failing original alternator on Ram 2500 and Ram 3500 trucks
• Charging irregularities tied to a worn Nippondenso alternator

Installation Notes and Tips

Verify the existing alternator matches the Nippondenso-style application, 8-groove serpentine pulley, external regulator configuration, and clockwise rotation before installation. Confirm connector style, mounting points, and clock position against the removed unit to ensure proper alignment on the vehicle. After installation, check charging voltage at the battery and inspect belt tracking and tension.

Quality Assurance

MPA Electrical remanufactured components are rebuilt for replacement service using the listed application and specification data. Confirm all fitment details against the vehicle and the removed alternator before ordering.