MPA Electrical 13953N Alternator

Alternator for Mercedes-Benz V8 Applications

MPA Electrical Part Number 13953N is a 12-volt, 150-amp alternator built for select Mercedes-Benz charging systems. It features an internal fan, internal regulator, clockwise rotation, and a pulley-free design for applications that use the correct OE-style setup.

This New line alternator is built for direct replacement use in Mercedes-Benz S-Class, E-Class, CL-Class, SL-Class, G-Class, CLS-Class, and SLR McLaren applications where a 150-amp Bosch-style unit is specified. Part number 13953N is also cross-referenced to Bosch 0-124-615-012 and 0-124-615-020 for the same application.

Key Features

• 150 amps output for 12-volt charging systems
• Internal fan and internal voltage regulator
• Clockwise rotation with 1:00 clock position
• Without pulley for OE-style pulley transfer where required
• Manufacturer listed as Bosch
• MPA Electrical New product line replacement

Fitment Details

• Fits 2005-2009 Mercedes-Benz SLR McLaren, N/A
• Fits 2003-2008 Mercedes-Benz G500, N/A
• Fits 2002-2006 Mercedes-Benz CL500, N/A
• Fits 2006 Mercedes-Benz CLS500, N/A
• Fits 2003-2006 Mercedes-Benz E500, N/A
• Fits 2005-2006 Mercedes-Benz G55 AMG, N/A; fits alternators rated at 150 amps
• Fits 2006 Mercedes-Benz S350, N/A
• Fits 2002-2006 Mercedes-Benz S430, N/A
• Fits 2002-2006 Mercedes-Benz S500, N/A
• Fits 2002-2006 Mercedes-Benz SL500, N/A
• Fits 2004-2005 Mercedes-Benz E320, N/A
• Fits 2003-2004 Mercedes-Benz G55 AMG, N/A
• Fits 2002-2003 Mercedes-Benz CLK430, N/A
• Fits 2003 Mercedes-Benz E320, N/A; fits alternators rated at 150 amps
• Fits 2002 Mercedes-Benz E430, N/A
• Fits 2002 Mercedes-Benz E55 AMG, N/A

Common Charging System Issues

• Low battery charge or repeated battery drain
• Dim lights or unstable electrical output
• Battery warning light on the dash
• Alternator noise or charging failure
• Voltage irregularities in Mercedes-Benz electrical systems

Installation Notes

Verify the existing alternator matches the 150-amp rating, 12-volt system, clockwise rotation, 1:00 clock position, internal regulator, and pulley-free configuration before installation. Confirm the vehicle application against the listed Mercedes-Benz fitment, especially on G55 AMG models where the notes specify 150-amp alternators.

Quality Assurance

MPA Electrical’s New line is built around application-specific replacement parts for charging and starting systems. This alternator is specified for Bosch-based Mercedes-Benz applications and is identified by part number 13953N for accurate ordering and fitment verification.