Bosch AL0826N Alternator

Bosch AL0826N Alternator Overview

The Bosch AL0826N is a new 14-volt alternator built for Mercedes-Benz charging systems that require a 180-amp output. It features an internal regulator, internal fan, clockwise rotation, and a pulley already installed for direct replacement service. This Bosch Premium Alternator is engineered and tested for consistent electrical performance and dependable operation.

Key Features

• Brand: Bosch Premium Alternators
• Part number: AL0826N
• 14-volt alternator with 180-amp amperage rating
• New unit with internal regulator and internal fan
• Clockwise rotation direction
• Pulley included; 6-groove pulley type
• Aluminum case and aluminum case color
• Outside pulley diameter: 51 mm
• OE cross-reference applications: 0121548902, 0131548502

Product Details

Bosch Premium Alternators are built as new charging components for vehicles that need stable system voltage and reliable battery replenishment. The AL0826N uses a 6S pulley configuration, a 51 mm outside pulley diameter, and a rear plug clock position of 4 o’clock with the main mounting ear at 6 o’clock. For Mercedes-Benz models such as the G55 AMG, SL55 AMG, ML500, R500, CL55 AMG, CLS55 AMG, E55 AMG, and S55 AMG, this alternator is a direct-fit electrical replacement when the vehicle calls for the listed 180-amp application. This Bosch AL0826N alternator is a practical choice for restoring charging performance on Mercedes-Benz G55 AMG and SL55 AMG applications, as well as other listed AMG and V8 models.

This part cross-references 0121548902 and 0131548502 for the same application.

Used For

• Charging system failure caused by a worn alternator
• Battery warning light related to low charging output
• Dim lights or electrical instability at idle or under load
• Reduced battery charging after startup
• Noise or bearing wear from the original alternator assembly

Installation Notes

Verify the vehicle’s original alternator output and connector orientation before installation. This unit is listed for Mercedes-Benz applications with a 180-amp alternator requirement, and fitment should be matched to the vehicle’s year, model, and notes. Confirm belt alignment, pulley style, and mounting ear position during replacement. Professional installation is recommended for charging-system diagnosis and final verification.

Quality Assurance

Bosch Premium Alternators are designed, built, and tested to deliver consistent performance and reliability. The new construction, internal regulation, and OE-style fitment details support dependable replacement service for the specified Mercedes-Benz applications.