MPA Electrical 13789 Alternator

Remanufactured Alternator for Nissan Frontier and Xterra

MPA Electrical Part Number 13789 is a remanufactured 12-volt alternator built for select Nissan Frontier and Nissan Xterra applications. It uses an internal regulator, internal fan, and a 5-groove serpentine pulley to match the original charging system layout.

This alternator is specified at 80 amps and rotates clockwise. The Hitachi manufacturer design and 4:00 clock position help align the unit with the factory mounting and belt routing used in the listed vehicles.

Key Features

• Remanufactured alternator for charging-system replacement
• 80 amp output for 12-volt electrical systems
• Internal regulator and internal fan
• 5-groove serpentine pulley
• Clockwise rotation with 4:00 clock position
• Built to match Hitachi-style OE fitment

Detailed Description

MPA Electrical 13789 is a remanufactured alternator for 1999-2002 Nissan Frontier and 2000-2002 Nissan Xterra models. It is engineered around the original charging-system specifications, including 80 amps, internal regulation, and a serpentine pulley configuration that supports factory belt alignment. If you are replacing a worn alternator on a Nissan Frontier or Nissan Xterra, this unit provides the core electrical and mechanical specs needed for a direct replacement.

This part cross-references BBB Industries 13789 for the same application.

What It Helps Solve

• Battery warning light caused by alternator output loss
• Low charging voltage during driving or idle
• Dim lights and unstable electrical performance
• Noise or wear related to a failing alternator assembly
• Charging-system failure on Nissan Frontier and Nissan Xterra models

Installation Notes and Tips

Verify pulley groove count, rotation, clock position, and regulator style before installation. Confirm the vehicle uses the listed Hitachi-style alternator configuration and compare the original part number to MPA Electrical 13789 when replacing the unit on a 1999-2002 Nissan Frontier or 2000-2002 Nissan Xterra.

Quality Assurance

MPA Electrical remanufactured electrical components are rebuilt to restore proper charging-system function and are intended to meet the fitment and specification requirements listed for this application.