Bosch AL0891X Alternator

Bosch Remanufactured Alternator AL0891X

The Bosch AL0891X remanufactured alternator is a 12-volt charging component built for steady electrical output and dependable operation. It is engineered with an internal regulator, internal fan, and a 140-amp rating for Audi applications that require this specific alternator configuration.

Bosch Premium Alternators are part of a product line focused on performance and reliability through controlled remanufacturing, testing, and specification matching. This AL0891X unit includes a pulley, uses clockwise rotation, and features a 6-groove pulley setup with a 56 mm outside pulley diameter.

Key Features

• Remanufactured Bosch alternator for 12-volt charging systems
• 140 amp amperage rating for OE-style electrical output
• Internal voltage regulator and internal fan design
• Clockwise rotation with pulley included
• 6-groove pulley type with 56 mm outside pulley diameter
• Aluminum case and aluminum case material for OE-style fitment
• Plug type 464 with rear view main mounting ear at 6 o’clock

Vehicle Fitment

• Fits 2009-2012 Audi A4, N/A, to 140 amp alternator.
• Fits 2009-2012 Audi A4 Quattro, N/A, to 140 amp alternator.
• Fits 2010-2012 Audi A5, N/A, to 140 amp alternator.
• Fits 2010-2012 Audi A5 Quattro, N/A, to 140 amp alternator.
• Fits 2011-2012 Audi Q5, N/A, to 140 amp alternator.
• Fits 2010 Audi S4, N/A, to 140 amp alternator.

What This Alternator Helps Address

• Battery warning lights caused by weak charging output
• Dim headlights or unstable electrical performance
• Charging system failure from a worn alternator
• Voltage irregularities affecting vehicle electronics
• Noise or belt-drive issues related to a failing alternator assembly

Installation Notes and Tips

Verify the plug type, pulley configuration, rotation direction, and amperage rating before installation. This Bosch AL0891X is a direct-fit style replacement for listed Audi applications, including Audi A4, Audi A4 Quattro, Audi A5, Audi A5 Quattro, Audi Q5, and Audi S4 models that call for a 140-amp alternator. Confirm the vehicle’s original alternator specifications against the part number and OE reference 06H903016L before installation.

Quality Assurance

Bosch remanufactured alternators are built and tested to meet application-specific performance requirements. The AL0891X is remanufactured to support consistent charging-system operation in the listed Audi applications.