Remy 12751 Alternator

Remanufactured 150 Amp Alternator for Mercedes-Benz

Remy Part Number 12751 is a premium remanufactured 12-volt alternator built for Mercedes-Benz charging system applications that require a Bosch-style unit. With a 150 amp amperage rating, internal voltage regulator, internal fan, clockwise rotation, and included pulley, it is specified for direct replacement use in select C-Class, E-Class, and SLK models.

Remy’s Premium Remanufactured line focuses on OE-style replacement components rebuilt to meet the electrical and fitment requirements of the original application. This alternator is a practical choice when replacing a worn charging unit on a Mercedes-Benz C250, C350, E350, SLK300, or related model that uses the listed 150 amp configuration.

Key Features

• Remy Part Number 12751
• 150 amp output for 12-volt charging systems
• Remanufactured unit with internal voltage regulator
• Internal fan design
• Pulley included
• Clockwise rotation
• OE manufacturer reference: Bosch
• Premium Remanufactured product line

Detailed Description

This alternator is built for Mercedes-Benz vehicles that use a Bosch OE-style charging system and a 150 amp output specification. It cross-references Bosch 0-124-525-055 and Mercedes-Benz 272-154-00-02 / A272-154-00-02 for the same application. Remy 12751 is a direct-fit electrical replacement for select Mercedes-Benz C250, C350, E350, SLK300, C230, C300, CLK350, SLK350, SLK280, and C280 applications listed below.

Compatible vehicle coverage includes Fits 2010-2011 Mercedes-Benz C250, N/A; Fits 2006-2011 Mercedes-Benz C350, N/A; Fits 2010-2011 Mercedes-Benz E350, N/A; Fits 2009-2011 Mercedes-Benz SLK300, N/A; Fits 2006-2009 Mercedes-Benz C230, N/A; Fits 2008-2009 Mercedes-Benz C300, N/A; Fits 2006-2009 Mercedes-Benz CLK350, N/A; Fits 2009 Mercedes-Benz SLK350, N/A; Fits 2006-2008 Mercedes-Benz SLK280, N/A; Fits 2005-2008 Mercedes-Benz SLK350, N/A; and Fits 2006-2007 Mercedes-Benz C280, N/A.

Common Replacement Uses

• Restores charging output when the battery warning light is on
• Addresses low-voltage or undercharging conditions
• Replaces a noisy, worn, or failing alternator
• Helps correct intermittent electrical performance in the charging system
• Supports proper battery replenishment during normal driving

Installation Notes and Tips

Verify the vehicle’s original alternator output, rotation direction, pulley configuration, and regulator style before installation. This unit is specified as clockwise rotation with an internal regulator and included pulley, so matching the original Bosch-based application is important for proper fitment. Confirm the exact Mercedes-Benz model year and engine configuration against the listed applications before ordering.

Quality Assurance

Remy Premium Remanufactured parts are rebuilt for OE-style replacement use and application-specific fitment. This alternator is remanufactured to match the listed electrical and mounting requirements for the covered Mercedes-Benz applications.