Bosch AL0844X Alternator

Bosch AL0844X Remanufactured Alternator

The Bosch AL0844X is a remanufactured 12-volt alternator built for charging-system performance in select Mercedes-Benz applications. It is engineered with an internal fan, internal regulator, and a 180-amp rating to support stable electrical output in vehicles with higher accessory demand.

Bosch Premium Alternators are part of a product line focused on rebuilt charging components that are designed, built, and tested for dependable operation. This remanufactured unit includes a pulley and external fan, and it uses a 6-groove belt setup for the listed Mercedes-Benz fitments.

Key Features

• 12-volt remanufactured alternator for charging-system replacement
• 180-amp amperage rating for select Mercedes-Benz electrical loads
• Internal fan and internal regulator design
• Clockwise rotation
• 6-groove pulley with 50 mm outside pulley diameter
• Aluminum case and aluminum case material
• Plug type 463 with rear-view plug clock position at 6 o’clock
• Cross-references Bosch 0131543502 and 0131545602 for the same application

Detailed Description

Bosch AL0844X is a remanufactured alternator for Mercedes-Benz models that require a 180-amp charging unit or, in some applications, a lower-output factory specification. It is listed for vehicles including the Mercedes-Benz G550, C250, C350, SL550, CLS550, E350, E550, S550, CL550, C300, ML350, S450, GL450, GL550, ML550, R350, R550, and CLK550 across the model years shown in the fitment data. For buyers searching for a Mercedes-Benz alternator replacement, Bosch AL0844X provides a direct-match option for the specified chassis and production notes.

The remanufactured construction is paired with Bosch’s charging-component engineering, making this unit a practical choice when replacing a worn alternator that no longer maintains proper system voltage. The 6S pulley type, internal regulator, and clockwise rotation should be matched carefully to the original unit before installation. Bosch AL0844X is also identified by interchange numbers 0131543502 and 0131545602.

What It Helps Address

• Battery warning lights caused by weak charging output
• Low system voltage during idle or accessory use
• Dim headlights or inconsistent electrical performance
• Charging failure from a worn alternator
• Voltage instability in Mercedes-Benz electrical systems

Installation Notes and Tips

• Verify the vehicle’s original amperage rating, production date, and chassis notes before ordering.
• Confirm pulley style, groove count, plug type, and rotation direction against the removed unit.
• Check belt condition and charging-system wiring during replacement.
• Inspect battery state of charge after installation to avoid misdiagnosing a charging concern.
• For fitment examples, this part fits 2014-2015 Mercedes-Benz G550, 2007-2012 Mercedes-Benz SL550, and 2007-2011 Mercedes-Benz E350 as listed in the application data.

Quality Assurance

This Bosch remanufactured alternator is built and tested to support reliable charging performance in the listed Mercedes-Benz applications. The aluminum housing, internal regulation, and application-specific fitment details reflect a replacement part intended to meet the electrical and physical requirements of the original system.