MPA Electrical 13900 Alternator

Remanufactured Alternator for Nissan and INFINITI

The MPA Electrical 13900 is a remanufactured 12-volt alternator built for select 2001-2002 Nissan Pathfinder and INFINITI QX4 applications with a Hitachi alternator. It is specified at 110 amps and uses an internal regulator for stable charging performance.

With a 6-groove serpentine pulley, internal fan, and clockwise rotation, this alternator is configured to match the original charging system layout on the listed vehicles. The 9:45 clock position and Hitachi manufacturer specification help support proper fitment during replacement.

Key Features

• MPA Electrical remanufactured alternator, part number 13900
• 110 amp output for 12-volt charging systems
• Internal regulator for integrated voltage control
• Internal fan design for alternator cooling
• 6-groove serpentine pulley
• Clockwise rotation with 9:45 clock position
• Built for Hitachi alternator applications

Product Details

MPA Electrical 13900 is a remanufactured alternator for 2001-2002 Nissan Pathfinder and 2001-2002 INFINITI QX4 models listed with a Hitachi alternator. This unit is designed around the original electrical and mounting specifications, including 110 amps, 12 volts, internal regulation, and a serpentine belt pulley setup. The part number 13900 is also cross-referenced by BBB Industries 13900 for the same application.

The remanufactured construction makes this alternator a direct replacement option for drivers addressing charging-system wear on the Pathfinder and QX4. The Hitachi-based configuration, internal fan, and clockwise rotation are important details for matching the factory-style alternator arrangement.

Common Replacement Reasons

• Battery warning light or charging-system warning
• Low charging output or inconsistent voltage
• Dim lights or electrical accessories losing power
• Alternator noise from worn internal components
• Failure on a Hitachi-equipped Nissan Pathfinder or INFINITI QX4 charging system

Installation Notes and Tips

Verify the existing alternator matches the Hitachi specification, 6-groove serpentine pulley, 9:45 clock position, internal regulator, and clockwise rotation before installation. Confirm belt alignment and electrical connector style against the removed unit to ensure the replacement matches the original charging-system layout.

Fits 2001 Nissan Pathfinder, N/A. Fits 2002 Nissan Pathfinder, N/A, w/ Hitachi Alternator. Fits 2001 INFINITI QX4, N/A. Fits 2002 INFINITI QX4, N/A, w/ Hitachi alt.

Quality Assurance

MPA Electrical remanufactured components are built for direct replacement use in specified vehicle applications. Part number 13900 is engineered to meet the listed electrical and fitment requirements for the covered Nissan Pathfinder and INFINITI QX4 models.