MPA Electrical 11455 Alternator

Remanufactured 180 Amp Alternator

This MPA Electrical remanufactured alternator is built for Mercedes-Benz charging system applications that use a Valeo-style unit. Part number 11455 delivers 12-volt operation, 180 amps of output, and an internal regulator for direct replacement service on select G550, GL450, GL550, ML350, ML550, R350, R550, and SLK350 models.

MPA Electrical’s Remanufactured line focuses on replacement electrical components restored to service-ready condition for charging and starting repairs. This alternator is specified with a 6-groove serpentine pulley, internal fan, clockwise rotation, and a 12:00 clock position to match the listed OE-style configuration.

• 180 amp output for Mercedes-Benz charging system replacement
• 12-volt alternator with internal regulator
• Internal fan and clockwise rotation
• 6-groove serpentine pulley
• Remanufactured unit for Valeo-equipped applications
• Part number 11455 for catalog and service lookup

Fitment Details

• Fits 2014-2015 Mercedes-Benz G550, N/A, w/ Valeo alt.; Remanufactured
• Fits 2012-2013 Mercedes-Benz G550, N/A, w/ Valeo Alt.; Remanufactured
• Fits 2010-2012 Mercedes-Benz GL450, N/A, Remanufactured
• Fits 2010-2012 Mercedes-Benz GL550, N/A, Remanufactured
• Fits 2009-2011 Mercedes-Benz G550, N/A, Alternator fits vehicles with Valeo 180 amp alternators.; Remanufactured
• Fits 2010-2011 Mercedes-Benz ML350, N/A, Remanufactured
• Fits 2010-2011 Mercedes-Benz ML550, N/A, Remanufactured
• Fits 2009-2011 Mercedes-Benz R350, N/A, Remanufactured
• Fits 2009-2011 Mercedes-Benz SLK350, N/A, Remanufactured
• Fits 2008-2009 Mercedes-Benz GL450, N/A, w/ Valeo alt.; Remanufactured
• Fits 2008-2009 Mercedes-Benz GL550, N/A, Alternator fits vehicles with Valeo 180 amp alternators.; Remanufactured
• Fits 2008-2009 Mercedes-Benz ML550, N/A, Alternator fits vehicles with Valeo 180 amp alternators.; Remanufactured
• Fits 2008 Mercedes-Benz R350, N/A, From 06/02/2008; Remanufactured
• Fits 2008 Mercedes-Benz R550, N/A, Alternator fits vehicles with Valeo 180 amp alternators.; Remanufactured

Common search terms for this part include Mercedes-Benz G550 alternator 180 amp, Mercedes-Benz GL450 remanufactured alternator, and Mercedes-Benz ML550 Valeo alternator replacement. This part cross-references Valeo 439649 for the same application.

What It Helps Address

• Low charging voltage or battery warning lights
• Dim lights caused by weak alternator output
• Battery drain after the engine is running
• Charging system faults on Valeo-equipped Mercedes-Benz models
• Alternator noise or inconsistent electrical performance

Installation Notes

Verify the existing alternator matches the listed Valeo 180 amp configuration, pulley style, rotation, and clock position before installation. Confirm belt routing and electrical connector fitment on the vehicle, and inspect the serpentine belt and charging system wiring during replacement. For best results, compare the original unit to part number 11455 before installation.

Quality Assurance

This remanufactured alternator is produced by MPA Electrical for charging-system replacement service and is identified by part number 11455. It is built to match the listed OE-style specifications for the confirmed Mercedes-Benz applications.