Bosch AL9377N Alternator
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Bosch
 Alternator (New)

Bosch AL9377N Alternator

Brand Bosch AL9377N
Voltage 14
Plug Clock Rear View Main Mounting Ear at 6 O Clock 6
Fan Type Internal
Ground Type Negative
Mounting Configuration Code Short
Rotation Direction Clockwise (right)
One Wire Capable No
Pulley Included Yes
External Regulator Included Yes
Pulley Groove Quantity 6
Outside Pulley Diameter 49.7
Regulator Type Internal
Decoupled Or Clutch Pulley No
AC Service Tap No
Amperage Rating 180
Mounting Type Foot-mounted
Brushless No
Automotive Item Weight (lbs) 15.741006 lb
New Or Remanufactured New
Product Length 7.559055 in
Pulley Type / Belt Type (Alternator) 6s
Product line Alternator (New)
Fits Mercedes-Benz · 26 vehicles

New unit. Bosch AL9377N is built for charging-system replacement service.

14-volt output. Delivers 180 amps with an internal regulator for stable electrical performance.

Complete pulley setup. Includes a 6-groove pulley with clockwise rotation and foot-mounted fitment.

Cross-references 0141540402 for the same application. See all 1.

$329.44Free shipping
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Mercedes-Benz Alternator Replacement

Bosch AL9377N is a new alternator built for charging-system service on select Mercedes-Benz applications. It delivers 14-volt output, 180 amps, and an internal regulator for stable electrical performance.

Key Features

  • New Bosch alternator, part number AL9377N
  • 14-volt, 180-amp charging output
  • Internal fan and internal regulator
  • Foot-mounted design with short mounting configuration
  • Clockwise rotation with 6-groove pulley
  • Negative ground configuration
  • Includes pulley and external regulator

Detailed Description

Bosch AL9377N is engineered as a new charging component for Mercedes-Benz vehicles that need a direct alternator replacement with the correct electrical and mounting specifications. The unit uses a foot-mounted, short configuration, clockwise rotation, and a 6S pulley setup with a 49.7 mm outside diameter. Bosch Premium Alternators are designed, built, and tested for performance and reliability, and this part cross-references 0141540402 for the same application. Use AL9377N when servicing charging output concerns on Mercedes-Benz G550, GL450, GL550, ML350, ML550, R350, R550, and SLK350 applications.

What It Is Used For

  • Low charging output or battery warning lights
  • Electrical system voltage instability
  • Alternator noise or pulley-related wear
  • Charging-system failure on Mercedes-Benz G550, GL450, GL550, ML350, ML550, R350, R550, and SLK350

Installation Notes and Tips

Verify pulley style, mounting configuration, rotation direction, and electrical connector layout before installation. Confirm the vehicle uses a negative-ground, 14-volt charging system and match the alternator to the listed Mercedes-Benz fitment. The part number AL9377N should be checked against the original unit before replacement.

Quality Assurance

Bosch Premium Alternators are designed, built, and tested to provide consistent performance and reliability. Confirm fitment by year, model, and charging-system specifications before installation.

Related reading

This part fits 26 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersNotes
2015Mercedes-BenzG5505.5LV8Alternator (New)
2014Mercedes-BenzG5505.5LV8Alternator (New)
2012Mercedes-BenzGL4504.7LV8Alternator (New)
2012Mercedes-BenzGL5505.5LV8Alternator (New)
2011Mercedes-BenzGL4504.7LV8Alternator (New)
2011Mercedes-BenzGL5505.5LV8Alternator (New)
2011Mercedes-BenzML3503.5LV6Alternator (New)
2011Mercedes-BenzML5505.5LV8Alternator (New)
2011Mercedes-BenzR3503.5LV6Alternator (New)
2011Mercedes-BenzSLK3503.5LV6Alternator (New)
2010Mercedes-BenzGL4504.7LV8Alternator (New)
2010Mercedes-BenzGL5505.5LV8Alternator (New)
2010Mercedes-BenzML3503.5LV6Alternator (New)
2010Mercedes-BenzML5505.5LV8Alternator (New)
2010Mercedes-BenzR3503.5LV6Alternator (New)
2010Mercedes-BenzSLK3503.5LV6Alternator (New)
2009Mercedes-BenzGL4504.7LV8Alternator (New)
2009Mercedes-BenzGL5505.5LV8Alternator (New)
2009Mercedes-BenzML5505.5LV8Alternator (New)
2009Mercedes-BenzR3503.5LV6Alternator (New)
2009Mercedes-BenzSLK3503.5LV6Alternator (New)
2008Mercedes-BenzGL4504.7LV8Alternator (New)
2008Mercedes-BenzGL5505.5LV8Alternator (New)
2008Mercedes-BenzML5505.5LV8Alternator (New)
2008Mercedes-BenzR3503.5LV6Alternator (New)
2008Mercedes-BenzR5505.5LV8Alternator (New)
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
0141540402