MPA Electrical 13779 Alternator

Remanufactured Bosch Alternator for Mercedes-Benz

MPA Electrical Part Number 13779 is a remanufactured 12-volt alternator built for Mercedes-Benz charging system applications that require a 150-amp output. It features an internal fan, internal regulator, clockwise rotation, and a no-pulley design for direct replacement use on listed vehicles.

Key Features

• 150 amps output for Mercedes-Benz electrical charging systems
• 12 volts with internal regulator
• Internal fan for alternator cooling
• Clockwise rotation
• Without pulley
• Built by Bosch for MPA Electrical remanufactured applications
• Part number 13779 for ordering and cross-reference lookup

Product Details

This remanufactured alternator is specified for a range of Mercedes-Benz models, including CLK55 AMG, ML55 AMG, CL55 AMG, S55 AMG, SL600, CLK430, E430, E55 AMG, ML430, SL500, C43 AMG, S500, and ML500. It is a fitment-based replacement for vehicles that use a Bosch-style 150-amp charging unit, and it cross-references BBB Industries 13779 for the same application. The MPA Electrical remanufactured line focuses on replacement electrical components restored to meet the required fitment and operating specifications for the vehicle platform.

What It Helps Fix

• Battery warning light caused by alternator output loss
• Low charging voltage at idle or under load
• Dim lights or unstable electrical performance
• Charging system failure on Mercedes-Benz E430, S500, and SL500 applications
• Alternator noise or charging irregularities tied to worn internal components

Installation Notes and Tips

Verify the vehicle’s original alternator specifications before installation, including amperage rating, pulley configuration, rotation, and regulator style. This unit is listed without a pulley and is intended for applications matching the Bosch 150-amp design. Confirm fitment for your exact Mercedes-Benz model and year before ordering, especially on 2003 CLK55 AMG first-production vehicles with post notes.

Quality Assurance

MPA Electrical remanufactured components are built for direct replacement use in listed applications and are identified by part number 13779 for accurate catalog matching. This alternator is also referenced under BBB Industries 13779 and TYC 13792 for the same application family.