Remy 20594 Alternator

Remanufactured 140 Amp Alternator

Remy Part Number 20594 is a premium remanufactured alternator built for 12-volt charging systems that require a 140 amp output. It uses an internal voltage regulator, external fan design, clockwise rotation, and includes the pulley for a direct-fit replacement in supported applications.

Compatible with select Buick Roadmaster, Cadillac Fleetwood, Chevrolet Caprice, Chevrolet Impala, and Pontiac Trans Sport applications, this Remy alternator is built around OE Delco/Delphi specifications for the listed vehicles. Remy Premium Remanufactured products focus on restoring core electrical performance for charging-system service.

Key Features

• 140 amp amperage rating for higher-output charging applications
• 12-volt alternator with internal voltage regulator
• External fan design and clockwise rotation
• Pulley included for the listed application
• Remanufactured to OE Delco/Delphi specifications
• Remy 20594 cross-references OE part numbers 10463338 and 10463678

Detailed Description

Remy 20594 is a premium remanufactured alternator for vehicles that use a 140 amp charging system option. It is listed for 1992-1996 applications across Buick Roadmaster, Cadillac Commercial Chassis, Cadillac Fleetwood, Chevrolet Commercial Chassis, Chevrolet Caprice, Chevrolet Impala, Chevrolet Lumina APV, Oldsmobile Silhouette, and Pontiac Trans Sport. Fitment notes include police and option-specific applications where the 140 amp alternator was specified from the factory.

This part number is also referenced by OE numbers 10463338, 10463678, 10479891, and 10480201. When replacing the original unit, verify the vehicle’s charging-system option, connector style, and mounting configuration against the existing alternator.

What It Helps Address

• Low charging output from a worn alternator
• Battery warning light caused by charging-system failure
• Dim lights or electrical instability at idle
• Noise or wear related to a failing alternator assembly
• Loss of charging performance in 140 amp option vehicles

Installation Notes and Tips

Confirm the vehicle is equipped with the 140 amp alternator option before ordering. Match the original pulley, rotation direction, voltage regulator type, and mounting points to the existing unit. After installation, inspect belt condition, belt tension, battery state of charge, and charging voltage to confirm proper system operation.

Quality Assurance

Remy Premium Remanufactured parts are rebuilt to OE Delco/Delphi-based specifications for the listed application coverage. This helps support consistent fitment and charging-system performance in the vehicles shown above.