Remy 12247 Alternator

Remanufactured Alternator for GM Minivans

Remy 12247 is a premium remanufactured 12-volt alternator built for charging-system service on select GM minivans. With a 105 amp rating, internal fan, internal voltage regulator, and clockwise rotation, it is built to match the electrical requirements of the original application.

Compatible with 1999 Pontiac Trans Sport, 1999-2001 Pontiac Montana, and 1999-2001 Oldsmobile Silhouette applications, this Remy Premium Remanufactured alternator is a direct-fit replacement for vehicles using the Bosch OE design.

Key Features

• Remanufactured alternator for 12V charging systems
• 105 amp amperage rating for standard electrical loads
• Internal fan and internal voltage regulator
• Pulley included for application-specific replacement needs
• Clockwise rotation
• OE manufacturer reference: Bosch
• Part number: 12247

Product Details

Remy Premium Remanufactured 12247 is engineered as an OE-style alternator replacement for GM platforms that require a Bosch-based charging unit. The internal regulator helps maintain system voltage, while the 105 amp output supports everyday electrical demand from lighting, ignition, HVAC controls, and onboard accessories. This part cross-references Bosch-style applications using 10288763 and 10418888 for the same application.

Use this alternator when servicing a 1999 Pontiac Trans Sport, a 1999-2001 Pontiac Montana, or a 1999-2001 Oldsmobile Silhouette with the matching 105 amp configuration. The Remy 12247 designation is also useful when verifying interchange and catalog lookup during charging-system repair.

Common Problems This Part Can Address

• Battery warning light caused by low alternator output
• Weak charging performance during normal driving
• Dim lights or fluctuating electrical voltage
• Battery drain after the vehicle is running
• Charging-system failure from a worn original alternator

Installation Notes and Tips

Confirm the vehicle uses a 105 amp alternator with clockwise rotation before installation. Verify pulley style, connector layout, and mounting points against the removed unit to ensure the replacement matches the original Bosch-based configuration. After installation, check charging voltage at the battery and inspect belt condition and tension.

Quality Assurance

As part of Remy’s Premium Remanufactured line, this alternator is remanufactured to support OE-style fitment and electrical performance for the listed applications. Remy 12247 is built for buyers who need a catalog-correct replacement for GM charging-system service.