TYC 2-11220 Alternator

TYC 2-11220 Alternator for Mercedes-Benz

TYC 2-11220 is a 180-amp alternator built for Mercedes-Benz charging system applications that require an internal regulator and internal fan. It uses a regular pulley with 6 grooves and clockwise rotation, matching the OE-style configuration for select G550, GL450, GL550, SL550, CLS550, E350, E550, ML350, ML550, S550, CL550, and R350 models.

Key Features

• 180A power generation for factory-style electrical output
• Internal regulator for integrated voltage control
• Internal fan design for the specified OE application
• Regular pulley with 6 grooves
• Clockwise rotation direction
• OE manufacturer reference: BO

Detailed Description

This TYC alternator, part number 2-11220, is specified for Mercedes-Benz vehicles that use a Bosch-style charging system with internal regulation and internal cooling. It is a direct-fit electrical replacement for select 2006-2015 Mercedes-Benz G550, GL450, GL550, SL550, CLS550, E350, E550, ML350, ML550, S550, CL550, and R350 applications. This part cross-references ACDelco 334-2912 for the same application.

Use TYC 2-11220 when you need a replacement alternator that matches the vehicle’s pulley layout, rotation direction, and 180-amp output requirements. The part number 2-11220 is also referenced across multiple aftermarket catalogs, including BBB Industries 11220, Lester 11220, Remy 12752, and WPS World Power Systems 11220N.

Vehicle Fitment

• Fits 2013-2015 Mercedes-Benz G550, N/A; Bosch Brand; Regulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 180A
• Fits 2009-2012 Mercedes-Benz G550, N/A; Regulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 180A
• Fits 2007-2012 Mercedes-Benz GL450, N/A; Bosch Brand; Regulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 180A
• Fits 2008-2012 Mercedes-Benz GL550, N/A; Bosch Brand; Regulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 180A
• Fits 2007-2012 Mercedes-Benz SL550, N/A; Regulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 180A
• Fits 2008-2011 Mercedes-Benz CLS550, N/A; Regulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 180A
• Fits 2010-2011 Mercedes-Benz E350, N/A; Regulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 180A
• Fits 2007-2011 Mercedes-Benz E550, N/A; Regulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 180A
• Fits 2007-2011 Mercedes-Benz ML350, N/A; Regulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 180A
• Fits 2008-2011 Mercedes-Benz ML550, N/A; Bosch Brand; Regulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 180A
• Fits 2007-2011 Mercedes-Benz S550, N/A; Regulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 180A
• Fits 2007-2010 Mercedes-Benz CL550, N/A; Regulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 180A
• Fits 2006-2010 Mercedes-Benz R350, N/A; Regulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 180A
• Fits 2007 Mercedes-Benz CLS550, N/A; From 06/30/2006; Regulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 180A
• Fits 2006 Mercedes-Benz ML350, N/A; From 05/31/2006; Regulator Position: Internal; Fan Position: Internal; Power Generation (Amps): 180A

Common Issues This Part Can Address

• Low charging output on Mercedes-Benz G550, GL450, or ML550 applications
• Battery warning light caused by alternator output loss
• Electrical system voltage instability during driving
• Charging failure related to worn internal regulator components
• Noise or performance issues tied to alternator wear

Installation Notes and Tips

Confirm the vehicle’s alternator configuration before installation, including internal regulator setup, internal fan design, 6-groove pulley, and clockwise rotation. Verify the application by year, model, and OE-style charging system details on the vehicle, especially on Mercedes-Benz G550, GL450, GL550, and ML350 platforms.

Quality Assurance

TYC manufactures this alternator to OE-style specifications for the listed Mercedes-Benz applications, with the stated 180-amp output and matching pulley and rotation design. Use the part number 2-11220 to confirm catalog and fitment matching before installation.