Remy 12645 Alternator

Remanufactured Alternator for Porsche 911, Boxster, and Cayman

Remy Premium Remanufactured alternator Part Number 12645 is a 12-volt, 150-amp charging unit built for select Porsche applications. It features an internal fan, internal voltage regulator, clockwise rotation, and an included pulley for direct-fit service on confirmed vehicles.

Premium Remanufactured Line Details

Remy Premium Remanufactured focuses on remanufactured electrical components restored to meet application-specific charging requirements. This alternator is remanufactured from an OE Bosch unit, making it a practical replacement for drivers seeking a Bosch-based charging solution for Porsche 911, Boxster, and Cayman models.

Key Features

• 150-amp amperage rating for factory-style charging output
• 12V alternator with internal voltage regulator
• Internal fan design for integrated cooling
• Clockwise rotation
• Pulley included
• Remanufactured OE Bosch-based unit
• Part Number 12645

Fitment

• Fits 2005-2006 Porsche 911, N/A, with clutch pulley; 150 amps; Premium Remanufactured.
• Fits 2005-2006 Porsche Boxster, N/A, with clutch pulley; 150 amps; Premium Remanufactured.
• Fits 2006 Porsche Cayman, N/A, compatible with multiple 150 amp alternator variants; Premium Remanufactured.

This part cross-references Bosch (e.g., 0-124-525-057) for the same application.

What It Helps Address

• Battery warning light caused by weak alternator output
• Low charging voltage during driving or idle
• Electrical system instability from a failing alternator
• Dim lights or accessory performance issues tied to charging loss
• Noise or pulley-related alternator service concerns

Installation Notes and Tips

Verify the vehicle’s original alternator configuration, including clutch pulley application, before installation. Confirm the 150-amp specification, clockwise rotation, and internal regulator layout match the removed unit. Inspect the charging belt, electrical connectors, and mounting points during replacement to help ensure proper system operation.

Quality Assurance

Remy Premium Remanufactured parts are remanufactured electrical components built for direct replacement use in confirmed Porsche applications. Part Number 12645 is listed for select 2005-2006 Porsche 911 and Boxster models and 2006 Porsche Cayman fitments.