Remy 20412 Alternator

Remanufactured Alternator for Cadillac 1989-1990

The Remy Premium Remanufactured 20412 alternator is a 12-volt charging system component built for select Cadillac applications from 1989-1990. It delivers 120 amps with an internal voltage regulator, clockwise rotation, an external fan, and a pulley included for direct replacement service.

Key Features

• Remanufactured alternator from Remy Premium Remanufactured
• 120 amp output for stable electrical charging
• 12-volt design with internal voltage regulator
• Clockwise rotation with external fan configuration
• Pulley included
• OE manufacturer reference: Delco/Delphi
• Part number 20412 for easy identification

Product Details

This Remy 20412 alternator is built for Cadillac charging system service where a 120 amp remanufactured unit is required. It is listed for 1989-1990 Cadillac Commercial Chassis, DeVille, Eldorado, Fleetwood, and Seville applications, including notes for vehicles without a heated windshield on certain models. If you are replacing a worn alternator on a Cadillac DeVille, Cadillac Fleetwood, or Cadillac Seville, this unit matches the specified electrical and mounting configuration for those applications. This part cross-references 1101490 and 10463121 for the same application.

What It Helps Address

• Low charging output from a failing alternator
• Battery warning light caused by charging system faults
• Dim lights or electrical instability at idle
• Noise or wear related to alternator failure
• Replacement needs for a 120 amp Cadillac charging system

Installation Notes and Tips

Verify the vehicle’s original alternator specifications before installation, including 12-volt system requirements, clockwise rotation, internal regulator setup, and pulley configuration. Confirm fitment against the vehicle notes, especially heated windshield exclusions on applicable Cadillac models. Inspect the belt, electrical connectors, and charging circuit condition during replacement to help ensure proper system operation.

Quality Assurance

Remy Premium Remanufactured parts are remanufactured to restore core functionality for service replacement use. This alternator is built to match the listed OE-style application details for the specified Cadillac vehicles and charging system requirements.