Remy 94120 Alternator

Remy 94120 Alternator for Mercedes-Benz

Remy 94120 is a new 12-volt alternator built for Mercedes-Benz charging system applications that require a 150 amp output, internal regulation, and clockwise rotation. It is a direct-fit electrical replacement for select Mercedes-Benz SLR McLaren, CL500, S500, and related models.

Key Features

• 150 amp amperage rating for OE-style charging performance
• 12V alternator with internal voltage regulator
• Internal fan design for integrated cooling
• Pulley included for installation on the correct drive setup
• Clockwise rotation direction
• New unit from Remy, part number 94120
• OE manufacturer reference: Bosch

Product Details

Remy 94120 is a new alternator engineered around Bosch OE specifications for Mercedes-Benz charging systems. This unit is listed for multiple 150 amp alternator variants across 2002-2009 Mercedes-Benz applications, including Mercedes-Benz E500, S430, SL500, and SLR McLaren. The internal regulator helps maintain stable system voltage, while the internal fan and included pulley support proper alternator operation in the vehicle’s accessory drive.

This part cross-references Bosch 0-124-615-012 and 0-124-615-044 for the same application. When replacing a Mercedes-Benz alternator, confirm the amperage rating, pulley configuration, and rotation direction before installation. Remy 94120 is also referenced by OE-style part numbers used on select Mercedes-Benz charging systems.

Vehicle Fitment

• Fits 2005-2009 Mercedes-Benz SLR McLaren, N/A. Compatible with multiple 150 Amp alternator variants; New.
• Fits 2002-2006 Mercedes-Benz CL500, N/A. Compatible with multiple 150 Amp alternator variants; New.
• Fits 2006 Mercedes-Benz CLS500, N/A. Compatible with multiple 150 Amp alternator variants; New.
• Fits 2003-2006 Mercedes-Benz E500, N/A. Compatible with multiple 150 Amp alternator variants; New.
• Fits 2006 Mercedes-Benz S350, N/A. Compatible with multiple 150 Amp alternator variants; New.
• Fits 2002-2006 Mercedes-Benz S430, N/A. Compatible with multiple 150 Amp alternator variants; New.
• Fits 2002-2006 Mercedes-Benz S500, N/A. Compatible with multiple 150 Amp alternator variants; New.
• Fits 2002-2006 Mercedes-Benz SL500, N/A. Compatible with multiple 150 Amp alternator variants; New.
• Fits 2004-2005 Mercedes-Benz E320, N/A. Compatible with multiple 150 Amp alternator variants; New.
• Fits 2002-2003 Mercedes-Benz CLK430, N/A. Compatible with multiple 150 Amp alternator variants; New.
• Fits 2003 Mercedes-Benz E320, N/A. Bosch Unit; Opt; 150 Amps; New.
• Fits 2002 Mercedes-Benz E430, N/A. Compatible with multiple 150 Amp alternator variants; New.
• Fits 2002 Mercedes-Benz E55 AMG, N/A. Compatible with multiple 150 Amp alternator variants; New.

Common Issues This Part Can Address

• Battery warning light caused by alternator output loss
• Low charging voltage at idle or under electrical load
• Dim lights, weak accessories, or intermittent electrical operation
• Noise or wear related to a failing alternator assembly
• Charging system faults on Mercedes-Benz E320, S500, or SL500 applications

Installation Notes

Verify the vehicle’s original alternator specifications before installation, including 150 amp output, clockwise rotation, and pulley style. Inspect the belt, tensioner, and electrical connections during replacement to help prevent repeat charging-system issues. This alternator is listed for Mercedes-Benz applications with N/A position data, so match the OE unit by part number and configuration.

Quality Assurance

Remy supplies new electrical components built to OE-style specifications, and this alternator is referenced to Bosch original equipment applications. Part number 94120 is intended for direct replacement use on the listed Mercedes-Benz models when the original charging system configuration matches.