Bosch AL9381X Alternator

Bosch AL9381X Alternator Overview

The Bosch AL9381X is a remanufactured 12-volt alternator built for charging-system replacement on select Volkswagen and Audi applications. It delivers a 140-amp rating with an internal regulator, internal fan, and clockwise rotation for vehicles originally equipped with a Valeo unit.

Bosch Premium Alternators are remanufactured, tested, and built to support dependable electrical performance in daily driving conditions. This AL9381X alternator includes the pulley and uses a 6-groove, 6S-CP belt setup with a 57.1 mm outside pulley diameter.

Key Features

• Remanufactured Bosch alternator for 12-volt charging systems
• 140-amp amperage rating for OE-style electrical output
• Internal regulator and internal fan design
• Clockwise rotation
• Pulley included; 6-groove pulley type
• Aluminum case and aluminum case material
• Plug type 367 with rear plug clock position at 6 o’clock
• Direct replacement format for Valeo-unit applications

Vehicle Fitment

• Fits 2017-2018 Volkswagen Tiguan Limited, to 140 amp alternator; with Valeo unit.
• Fits 2009-2017 Volkswagen CC, to 140 amp alternator; with Valeo unit.
• Fits 2013-2017 Volkswagen Tiguan, to 140 amp alternator; with Valeo unit.
• Fits 2009-2011 Volkswagen Tiguan, to 140 amp alternator; with Valeo unit.
• Fits 2014-2016 Volkswagen Eos, to 140 amp alternator; with Valeo unit.
• Fits 2009-2012 Volkswagen Eos, to 140 amp alternator; with Valeo unit.
• Fits 2011-2014 Volkswagen GTI, to 140 amp alternator; with Valeo unit.
• Fits 2008-2009 Volkswagen GTI, to 140 amp alternator; with Valeo unit.
• Fits 2011-2013 Audi A3, to 140 amp alternator; with Valeo unit.
• Fits 2012 Volkswagen Jetta, to 140 amp alternator; with Valeo unit.
• Fits 2009-2010 Volkswagen Passat CC, to 140 amp alternator; with Valeo unit.
• Fits 2007-2009 Audi A4, to 140 amp alternator; with Valeo unit.
• Fits 2007-2009 Audi A4 Quattro, to 140 amp alternator; with Valeo unit.

What This Alternator Helps Address

• Battery warning light caused by weak charging output
• Dim headlights or unstable electrical performance
• Low-voltage conditions after alternator wear
• Charging failure on Volkswagen and Audi vehicles with Valeo units
• Accessory and starting issues related to insufficient alternator output

Installation Notes and Tips

Confirm the original alternator matches the 140-amp specification, Valeo-unit application, plug type 367, and 6-groove pulley configuration before installation. Verify the rear plug clock position at 6 o’clock and the clockwise rotation direction to ensure proper fitment. This part cross-references Bosch AL9381X for the same application.

For best results, inspect the belt, battery condition, and charging connections during replacement. Proper system testing after installation helps confirm stable voltage output across the vehicle’s electrical system.

Quality Assurance

Bosch Premium Alternators are remanufactured, built, and tested to meet charging-system performance and reliability expectations for replacement use. The AL9381X follows Bosch’s premium alternator line standards for select Volkswagen and Audi applications.