MPA Electrical 15729 Alternator

Remanufactured Alternator for Mercedes-Benz Applications

MPA Electrical Part Number 15729 is a remanufactured 12-volt alternator built for select Mercedes-Benz charging systems. It delivers 150 amps and uses an internal regulator, internal fan, and a 6-groove serpentine pulley for direct-fit replacement in supported vehicles.

This alternator is compatible with Mercedes-Benz SLK55 AMG, C55 AMG, CLK500, CLK55 AMG, C320, and ML500 applications listed below. If you are replacing a failing charging unit on a Mercedes-Benz with Bosch-style specifications, Part Number 15729 provides the correct electrical and pulley configuration for the listed fitments.

Key Features

• 150 amp output for 12-volt charging systems
• Internal regulator for integrated voltage control
• Internal fan design
• 6-groove serpentine pulley
• Clockwise rotation
• Built by MPA Electrical as a remanufactured unit
• Manufacturer reference: Bosch

Detailed Product Information

MPA Electrical 15729 is a remanufactured alternator engineered around Bosch specifications for Mercedes-Benz charging system service. The unit is configured with a 1:00 clock position, clockwise rotation, internal regulation, and a 6-groove serpentine pulley, making it a direct replacement for the listed vehicles that require this setup. This part cross-references BBB Industries 11042 for the same application.

Fitment includes 2005-2011 Mercedes-Benz SLK55 AMG, 2005-2006 Mercedes-Benz C55 AMG, 2003-2006 Mercedes-Benz CLK500, 2004-2006 Mercedes-Benz CLK55 AMG, 2003-2005 Mercedes-Benz C320, 2005 Mercedes-Benz ML500 with 150 amp alternator, 2003-2004 Mercedes-Benz ML500, and 2003 Mercedes-Benz CLK55 AMG second production with 2 pin plug.

Common Charging System Issues This Part Addresses

• Low battery charging caused by alternator output loss
• Battery warning light triggered by charging system faults
• Dim lights or electrical instability at idle
• Noise or wear related to alternator bearing or pulley failure
• Intermittent charging on Mercedes-Benz vehicles with the listed Bosch-style setup

Installation Notes and Tips

Verify the pulley groove count, rotation, clock position, and electrical connector style before installation. The 2003 Mercedes-Benz CLK55 AMG listing requires second production with a 2 pin plug, and the 2005 Mercedes-Benz ML500 listing specifies a 150 amp alternator. Confirm the vehicle’s original alternator specifications against Part Number 15729 before replacement.

Quality Assurance

MPA Electrical supplies remanufactured electrical components for charging and starting system service. This alternator is remanufactured to match the listed Bosch-based application requirements for the specified Mercedes-Benz models.