Bosch AL0727X Alternator

Bosch Remanufactured Alternator AL0727X

The Bosch AL0727X is a remanufactured 12-volt alternator built for steady charging performance and dependable electrical output. It is a direct-fit charging system component for select Audi A4, Audi A4 Quattro, Audi A6 Quattro, Audi S4, and Volkswagen Passat applications with a Bosch unit.

Key Features

• Remanufactured Bosch alternator for 12-volt charging systems
• 120 amp amperage rating for OE-style electrical output
• Internal fan and internal regulator design
• Includes pulley and external fan
• 6-groove pulley with 64 mm outside diameter
• Clockwise rotation
• Aluminum case and aluminum case material for durable construction
• Plug type 367 with rear-view plug clock at 8 o’clock and main mounting ear at 6 o’clock

Product Details

Bosch Premium Alternators are remanufactured, built, and tested to deliver consistent performance and reliability in demanding charging-system service. The AL0727X is specified for vehicles that use a Bosch alternator and a 120 amp configuration, including 1999-2005 Volkswagen Passat, 1999-2001 Audi A4 and A4 Quattro, 2000-2002 Audi S4, and 2002-2003 Audi A6 Quattro. This part cross-references Volkswagen/Audi OE number 078903016F for the same application. The Bosch AL0727X is a practical replacement when you need stable battery charging and proper electrical system operation in these fitments.

What This Alternator Helps Address

• Battery warning light caused by alternator output loss
• Low charging voltage during driving
• Dim lights or fluctuating electrical performance
• Battery drain after the engine is running
• Charging-system noise or inconsistent accessory operation

Installation Notes and Tips

Verify the vehicle uses a Bosch unit and confirm the plug clock, mounting ear position, pulley style, and 120 amp specification before installation. Fits 2005 Volkswagen Passat, N/A; Fits 2003 Volkswagen Passat, N/A; Fits 2000 Volkswagen Passat, N/A; Fits 2002 Volkswagen Passat, N/A; Fits 1999 Volkswagen Passat, N/A; Fits 2002-2003 Audi A6 Quattro, N/A; Fits 2000-2002 Audi S4, N/A; Fits 2000-2001 Audi A4, N/A; Fits 2000-2001 Audi A4 Quattro, N/A; Fits 1999 Audi A4, N/A; Fits 1999 Audi A4 Quattro, N/A. Confirm belt alignment and electrical connector match before final assembly.

Quality Assurance

This Bosch Premium Alternator is remanufactured and tested to support reliable charging performance. Bosch’s alternator line is built around controlled remanufacturing and validation processes for consistent fit and function in the specified Audi and Volkswagen applications.