MPA Electrical 13900N Alternator
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MPA Electrical 13900N Alternator

Brand MPA Electrical 13900N
Amps 110 Amps
Clock 9:45
Fan Internal
Manufacturer Hitachi
Pulley 6 Groove Serpentine
Regulator Internal
Rotation Clockwise
Volts 12 Volts
Product line New
Fits INFINITI and Nissan · 4 vehicles

New unit. Freshly built alternator for dependable charging performance.

110 amps. Provides strong electrical output for demanding systems.

Internal regulator. Simplifies charging control with an integrated design.

Cross-references BBB Industries 13900, 23100-3W400 and 19134427 for the same application. See all 5.

$189.29Free shipping
In stock · usually ships same day before 1pm CST
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Alternator for Nissan Pathfinder and INFINITI QX4

MPA Electrical 13900N is a new 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 direct charging-system replacement service.

  • 110 amps output for OE-style charging performance
  • 12-volt alternator with internal regulator
  • Internal fan design
  • 6-groove serpentine pulley
  • Clock position: 9:45
  • Clockwise rotation
  • Manufacturer: Hitachi

Product details

MPA Electrical part number 13900N is an alternator for charging-system repair on select Nissan Pathfinder and INFINITI QX4 models. The unit is configured with a 6-groove serpentine pulley, clockwise rotation, and a 9:45 clock position, making it a direct-spec replacement for vehicles originally equipped with a Hitachi alternator. Use part number 13900N when searching for a new alternator for 2001-2002 Nissan Pathfinder or 2001-2002 INFINITI QX4 charging system service.

This part cross-references BBB Industries 13900 for the same application.

What it helps fix

  • Battery warning light caused by alternator output loss
  • Low charging voltage at the battery
  • Dim lights or electrical instability while driving
  • Hard starting after repeated short trips
  • Charging-system failure on a Hitachi-equipped Pathfinder or QX4

Installation notes and tips

Verify pulley groove count, rotation, clock position, and regulator style against the original unit before installation. Confirm the vehicle is equipped with the Hitachi alternator configuration listed in the fitment data for 2001-2002 Nissan Pathfinder and 2001-2002 INFINITI QX4. Inspect the drive belt, battery condition, and charging connections during replacement to help ensure proper system operation.

Quality assurance

MPA Electrical supplies new replacement electrical components for charging and starting system service. This alternator is built to the listed electrical and mounting specifications for the confirmed applications.

Related reading

This part fits 4 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2002INFINITIQX43.5LV6N/Aw/ Hitachi alt.; New
2002NissanPathfinder3.5LV6N/Aw/ Hitachi Alternator; New
2001INFINITIQX43.5LV6N/ANew
2001NissanPathfinder3.5LV6N/ANew
Directly replaces or cross-references 5 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
BBB Industries — 1390023100-3W4001913442789037328LR1110-712