Remy 12053 Alternator

Remanufactured Alternator for Audi and Volkswagen

The Remy Premium Remanufactured 12053 is a 12-volt alternator built for charging-system service on select Audi and Volkswagen applications. It delivers 90 amps, uses an internal voltage regulator, and includes the pulley for a direct replacement approach on Bosch-equipped vehicles.

Compatible With 1999-2005 Volkswagen Passat and 2000-2001 Audi A4 / A4 Quattro applications that call for a Bosch unit, this Remy alternator is a fitment-focused replacement for common charging repairs. The 12053 part number is also a useful cross-reference when matching OE-style Bosch alternator applications.

Key Features

• 90 amp output for 12-volt charging systems
• Remanufactured Premium Remanufactured line from Remy
• OE manufacturer reference: Bosch
• Internal fan design
• Internal voltage regulator
• Pulley included
• Clockwise rotation

Product Details

Remy 12053 is a remanufactured alternator intended for vehicles that use a Bosch-style charging unit. It is specified for 1999-2005 Volkswagen Passat, 2000-2001 Audi A4, and 2000-2001 Audi A4 Quattro applications, with 90 amp output to support the vehicle’s electrical system. The Premium Remanufactured line focuses on OE-based replacement parts, and this unit cross-references Bosch 0-124-325-017 and 06B-903-016A for the same application.

Common Problems This Part Can Address

• Battery warning light caused by alternator output loss
• Low charging voltage during driving
• Dim lights or unstable electrical performance
• Charging-system failure on Bosch-equipped Audi or Volkswagen models
• Noisy or worn alternator operation tied to internal component wear

Installation Notes and Tips

Verify the OE part number, pulley style, rotation direction, and electrical connector match before installation. Confirm the vehicle uses a 12-volt, 90 amp alternator with an internal regulator and Bosch-based fitment. After installation, check charging voltage at the battery and inspect belt condition and tension to confirm proper system operation.

Quality Assurance

Remy Premium Remanufactured parts are remanufactured to OE-based specifications for replacement use. This alternator is built around Bosch application data and is intended to restore proper charging performance on the listed Audi and Volkswagen vehicles.