Remy 12773 Alternator

Remanufactured Alternator for GM Charging Systems

Remy Premium Remanufactured Part Number 12773 is a 12-volt alternator built for dependable charging performance in select Chevrolet applications. It features a 125-amp output, internal fan, internal voltage regulator, clockwise rotation, and an included pulley for the specified Bosch-based fitments.

Compatible with 2006-2009 Chevrolet Impala and 2006 Chevrolet Monte Carlo applications listed below, this alternator is a direct-fit electrical replacement for vehicles using the matching Bosch unit configuration. Part number 12773 is also referenced by OE and interchange numbers for application matching.

Key Features

• Remanufactured alternator from Remy Premium Remanufactured
• 125-amp amperage rating for factory-style charging output
• 12-volt electrical system application
• Internal fan and internal voltage regulator
• Clockwise rotation direction
• Pulley included
• OE manufacturer reference: Bosch

Product Details

Remy 12773 is a remanufactured alternator engineered around the original Bosch unit specification used in select Chevrolet Impala and Chevrolet Monte Carlo models. The unit is built for vehicles that require a 125-amp, 12-volt alternator with internal regulation and clockwise rotation, making it a practical replacement when restoring charging-system performance. This part cross-references OE numbers 15233597 and 20757891 for the same application.

Common Charging System Issues It Can Address

• Battery warning light illuminated on the dash
• Low charging voltage at the battery
• Battery not staying charged during normal driving
• Dim lights or electrical accessories operating inconsistently
• Alternator noise or charging failure tied to a worn unit

Installation Notes and Fitment Tips

Fits 2006-2009 Chevrolet Impala, N/A; Bosch Unit; w/Clutch Pulley; 125 Amps; Premium Remanufactured. Fits 2006 Chevrolet Monte Carlo, N/A; 125 Amps; Premium Remanufactured. Verify pulley style, rotation, amperage, and connector match the original Bosch alternator before installation. Confirm the vehicle’s charging-system condition, belt condition, and battery health during replacement to help ensure proper operation.

Quality Assurance

Remy Premium Remanufactured parts are remanufactured to restore OE-style function for the specified application. Part number 12773 is built to match the listed Bosch-based fitment requirements for Chevrolet Impala and Chevrolet Monte Carlo charging-system service.