MPA Electrical 11120N Alternator

Alternator for Nissan and Infiniti Applications

MPA Electrical 11120N is a 12-volt, 130-amp alternator built with an internal regulator, internal fan, and a clockwise rotation. It uses a 7-groove serpentine pulley and a Hitachi manufacturer design for direct-fit replacement in select Nissan and INFINITI vehicles.

Compatible With 2004-2007 Nissan TITAN, Nissan Armada, Nissan Pathfinder Armada, and INFINITI QX56 applications, this alternator is specified for vehicles equipped with the matching Hitachi-style charging system. The MPA Electrical New line focuses on replacement electrical components for common charging and starting repairs.

Key Features

• 130 amps output for charging-system replacement
• 12-volt alternator with internal voltage regulator
• Internal fan design for integrated cooling
• 7-groove serpentine pulley
• Clockwise rotation
• Hitachi manufacturer specification
• MPA Electrical part number 11120N

Detailed Description

This alternator is built for vehicles that use a Hitachi-style charging setup and the listed 7-groove serpentine belt configuration. The 130-amp rating supports the electrical demands of factory accessories while maintaining stable system voltage through the internal regulator. For buyers searching for a Nissan TITAN alternator, Nissan Armada alternator, or INFINITI QX56 alternator, part number 11120N provides a direct reference point for the correct application.

This part cross-references BBB Industries 11120 for the same application.

What It Helps Fix

• Battery warning light caused by alternator output loss
• Low charging voltage at idle or under load
• Dim lights or electrical accessories operating inconsistently
• Noise or failure related to a worn alternator assembly
• Charging-system faults on select Nissan and INFINITI models

Installation Notes and Tips

• Verify pulley groove count, rotation, and connector style before installation.
• Confirm the vehicle uses the Hitachi alternator configuration listed for this part.
• Check belt condition and charging-system wiring during replacement.
• Inspect battery state of charge and test the charging system after installation.
• Use the fitment notes for production cutoff details, including 2007 models built to 8/2006.

Quality Assurance

MPA Electrical New replacement parts are cataloged to match the listed electrical specifications and fitment details for the application shown. Part number 11120N is identified for select Nissan and INFINITI charging-system repairs, including 2004-2007 Nissan TITAN, 2005-2007 Nissan Armada, and 2004-2007 INFINITI QX56 coverage where specified.