MPA Electrical 13939 Alternator

Remanufactured Alternator for Nissan Altima and Sentra

MPA Electrical Part Number 13939 is a remanufactured 12-volt alternator built for select Nissan charging system applications. It is specified at 110 amps and uses an internal regulator, internal fan, and a 6-groove serpentine clutch pulley for OE-style fitment.

Compatible With 2002-2006 Nissan Altima and 2002-2006 Nissan Sentra, this alternator is a direct replacement option for vehicles using the listed Hitachi-style configuration. The MPA Electrical remanufactured line focuses on restoring core charging components to service-ready condition for everyday repair needs.

Key Features

• MPA Electrical remanufactured alternator, Part Number 13939
• 110 amp output for 12-volt charging systems
• Internal voltage regulator for integrated control
• Internal fan design
• 6-groove serpentine clutch pulley
• Clockwise rotation
• Hitachi manufacturer specification

Detailed Description

This alternator is built for Nissan Altima and Nissan Sentra models from 2002 through 2006 and matches the listed electrical and pulley configuration. Part Number 13939 is a practical replacement for charging-system service where the original alternator has failed, output has dropped, or the vehicle is showing charging irregularities. This part cross-references BBB Industries 13939 for the same application.

Use this remanufactured alternator when you need a 12-volt, 110-amp unit with an internal regulator and clockwise rotation. The 6-groove serpentine clutch pulley supports the belt setup used on the covered applications, helping maintain proper accessory drive operation on Nissan Altima and Sentra models.

Common Issues This Part Can Address

• Battery warning light caused by alternator output loss
• Low charging voltage during driving or idle
• Dim lights or electrical instability from weak charging performance
• Noise or belt-related issues tied to a worn alternator pulley
• Charging system failure on 2002-2006 Nissan Altima and 2002-2006 Nissan Sentra

Installation Notes and Tips

Verify the existing alternator matches the listed 110 amp, 12-volt, internal regulator, clockwise rotation, and 6-groove serpentine clutch pulley specifications before installation. Confirm connector style, mounting points, and belt alignment against the removed unit to ensure proper fit on the Nissan Altima or Nissan Sentra application.

After installation, check charging voltage at the battery and inspect belt tracking to confirm the system is operating correctly.

Quality Assurance

MPA Electrical remanufactured components are rebuilt for replacement use in charging and starting systems. Part Number 13939 is specified to match the listed Hitachi-style alternator configuration for the covered Nissan applications.