Remy 12051 Alternator

Remanufactured Alternator for Volkswagen Applications

This Remy Premium Remanufactured alternator is built for Volkswagen charging-system service where a Bosch-style unit is specified. It delivers 90 amps at 12 volts and includes an internal voltage regulator for stable electrical output.

Key Features

• Remanufactured alternator from Remy’s Premium Remanufactured line
• 90-amp output for standard charging-system replacement
• 12-volt design with internal voltage regulator
• Internal fan and clockwise rotation
• Pulley included for direct replacement service
• OE manufacturer reference: Bosch

Detailed Description

Part number 12051 is a remanufactured alternator engineered for Volkswagen Beetle, Golf, and Jetta applications that use a Bosch unit. The fitment covers 1999-2006 Volkswagen Beetle, 1999-2001 Volkswagen Golf, 2002-2006 Volkswagen Golf, and 2002-2005 Volkswagen Jetta, with notes identifying standard or optional 90-amp configurations depending on the vehicle listing. This part cross-references Bosch-style numbers such as 0-124-325-001 and 038-903-023L for the same application.

Remy Premium Remanufactured focuses on service replacement parts that match the original equipment style and electrical requirements. For buyers searching for a Volkswagen Beetle alternator 12051, a Volkswagen Golf alternator 12051, or a Volkswagen Jetta alternator 12051, this unit provides the specified amperage, regulator type, and pulley configuration needed for a proper charging-system repair.

Common Uses

• Charging warning light caused by alternator output loss
• Battery discharge from insufficient charging voltage
• Electrical system instability under load
• Replacement for a worn or failed Bosch-style alternator
• Restoration of normal charging performance in Volkswagen vehicles

Installation Notes and Tips

Verify the vehicle’s original alternator specification, including amperage and Bosch-unit notes, before installation. Confirm pulley style, rotation direction, and electrical connector match the removed unit. Use the fitment notes to distinguish standard and optional applications for the correct Volkswagen Beetle, Golf, or Jetta configuration.

Quality Assurance

Remy Premium Remanufactured parts are remanufactured to service original-equipment-style applications and electrical specifications. Part number 12051 is identified with Bosch OE manufacturer reference data for application matching.