Bosch AL0841N Alternator

Bosch AL0841N Alternator Overview

The Bosch AL0841N is a new 14-volt alternator built for BMW charging-system applications that require a 180-amp output. It features an internal regulator, internal fan, clockwise rotation, and an aluminum case for a direct-fit replacement in supported vehicles.

As part of the Bosch Premium Alternators line, this unit is built and tested for consistent electrical performance and dependable operation. The AL0841N also includes a pulley and uses a 6-groove belt setup, making it a practical choice for BMW 128i, 328i, X3, and related applications.

Key Features

• Bosch Premium Alternators line for OE-style charging-system replacement
• 14-volt alternator with 180-amp amperage rating
• Internal regulator and internal fan
• Clockwise rotation direction
• Aluminum case and aluminum case color
• Pulley included; 6-groove pulley design
• Outside pulley diameter: 55 mm
• New alternator, not remanufactured
• Plug type 463 with rear-view plug clock at 12 o’clock

Detailed Description

The Bosch AL0841N alternator is engineered for BMW charging systems that call for a 180-amp unit with internal regulation. It is a new alternator with a 6-groove pulley, clockwise rotation, and a compact aluminum housing measuring 7.440945 inches in length. This part number, AL0841N, is commonly referenced for BMW applications where stable charging output is needed under normal electrical load.

Compatible With 2007-2013 BMW 328i, 2008-2013 BMW 128i, 2007-2010 BMW X3, 2008-2010 BMW 528i, and other listed BMW applications. This part cross-references Bosch OE number 12317551256 for the same application.

What This Alternator Helps Address

• Battery warning light caused by charging-system failure
• Low system voltage during driving or idling
• Dim lights or unstable electrical performance
• Accessory shutdown related to insufficient alternator output
• Charging issues on BMW 128i, 328i, X3, and X5 applications

Installation Notes and Fitment

• Fits 2008-2013 BMW 128i, N/A; To 180 Amp Alternator; Alternator (New)
• Fits 2007-2013 BMW 328i, N/A; To 180 Amp Alternator; Alternator (New)
• Fits 2009-2013 BMW 328i xDrive, N/A; To 180 Amp Alternator; Alternator (New)
• Fits 2008-2010 BMW 528i, N/A; To 180 Amp Alternator; Alternator (New)
• Fits 2009-2010 BMW 528i xDrive, N/A; To 180 Amp Alternator; Alternator (New)
• Fits 2007-2010 BMW X3, N/A; To 180 Amp Alternator; Alternator (New)
• Fits 2010 BMW X5, N/A; To 180 Amp Alternator; without Rear A/C; Alternator (New)
• Fits 2008-2009 BMW 323i, N/A; To 180 Amp Alternator; Alternator (New)
• Fits 2007-2009 BMW X5, N/A; To 180 Amp Alternator; with Bosch Unit; without Rear A/C; Alternator (New)
• Fits 2007-2008 BMW 328xi, N/A; To 180 Amp Alternator; Alternator (New)
• Fits 2008 BMW 528xi, N/A; To 180 Amp Alternator; Alternator (New)
• Fits 2007 BMW 323i, N/A; From 04/2007; To 180 Amp Alternator; Alternator (New)

Verify the existing alternator’s amperage, plug type, pulley configuration, and rear accessory options before installation. The AL0841N uses an internal regulator and a specific connector orientation, so matching the original unit is important for proper fitment on BMW 328i, 128i, and X3 charging systems.

Quality Assurance

Bosch Premium Alternators are built and tested to support reliable charging performance in demanding automotive electrical systems. The AL0841N is a new unit manufactured to Bosch specifications for the listed BMW applications.