BBB Industries 11303 Alternator

Reman Alternator for Mercedes-Benz AMG Applications

The BBB Industries Reman Alternator 11303 is a 12-volt, 180-amp charging unit built for select Mercedes-Benz AMG models. It features an internal voltage regulator, serpentine belt pulley, and clockwise rotation for direct replacement service on listed applications.

Key Features

• 180 amp amperage rating for high-output charging demand
• 12V alternator with internal voltage regulator
• OE manufacturer reference: Bosch
• Air-cooled design with internal fan
• 6-groove conventional pulley included
• Negative polarity, clockwise rotation
• Serpentine belt type with 1-7/8 in. (48 mm) outside pulley diameter
• Plug clock position: 7

Product Details

BBB Industries REMAN ALTERNATOR 11303 is engineered as a remanufactured replacement alternator for Mercedes-Benz C63 AMG, SL63 AMG, CLS63 AMG, E63 AMG, ML63 AMG, CLK63 AMG, and R63 AMG applications listed below. This unit matches the OE Bosch configuration with a 180-amp output, internal regulation, and a conventional pulley setup to support proper belt drive alignment and charging-system operation. This part cross-references Bosch 0-121-715-007 and 156-154-01-02 for the same application.

Vehicle Fitment

• Fits 2008-2015 Mercedes-Benz C63 AMG, N/A; 180 Amps; REMAN ALTERNATOR
• Fits 2011-2012 Mercedes-Benz SL63 AMG, N/A; 180 Amps; REMAN ALTERNATOR
• Fits 2009 Mercedes-Benz SL63 AMG, N/A; 180 Amps; REMAN ALTERNATOR
• Fits 2007-2011 Mercedes-Benz CLS63 AMG, N/A; 180 Amps; REMAN ALTERNATOR
• Fits 2007-2011 Mercedes-Benz E63 AMG, N/A; 180 Amps; REMAN ALTERNATOR
• Fits 2007-2011 Mercedes-Benz ML63 AMG, N/A; 180 Amps; REMAN ALTERNATOR
• Fits 2007-2009 Mercedes-Benz CLK63 AMG, N/A; 180 Amps; REMAN ALTERNATOR
• Fits 2007 Mercedes-Benz R63 AMG, N/A; 180 Amps; REMAN ALTERNATOR

Common Replacement Reasons

• Battery warning light or charging-system fault
• Low system voltage under load
• Dim lights or electrical instability
• Alternator bearing noise or pulley wear
• Failed internal regulator or worn charging components

Installation Notes

Verify pulley groove count, plug clock position, rotation direction, and OE-style electrical connection before installation. Confirm belt routing and charging-system specifications for the specific Mercedes-Benz AMG model and year listed. The part number 11303 should be matched to the vehicle application and existing alternator configuration before replacement.

Quality Assurance

BBB Industries remanufactures charging components to OE-style specifications for direct-fit service on listed applications. This reman alternator is built around the Bosch design reference used on the confirmed Mercedes-Benz AMG fitments.