Remy 20303 Alternator

Remanufactured Alternator for GM Compact Cars

Remy Part Number 20303 is a premium remanufactured 12-volt alternator built for select GM compact applications that require 105 amps of charging output. It features an internal voltage regulator, external fan design, clockwise rotation, and a pulley included for direct replacement service.

Key Features

• 105 amp amperage rating for factory-style charging performance
• Remanufactured unit from Remy Premium Remanufactured
• 12V alternator with internal voltage regulator
• External fan design and clockwise rotation
• Pulley included for application-specific replacement
• OE manufacturer reference: Delco/Delphi

Fitment Details

• Fits 1991 Oldsmobile Cutlass Calais, N/A — w/AC; 105 Amps; Premium Remanufactured
• Fits 1988-1991 Pontiac Grand Am, N/A — w/AC; 105 Amps; Premium Remanufactured
• Fits 1986-1987 Buick Skylark, N/A — Not compatible with vehicles with less than 105 amps capacity.; Premium Remanufactured
• Fits 1986-1987 Oldsmobile Calais, N/A — Not compatible with vehicles with less than 105 amps capacity.; Premium Remanufactured
• Fits 1986-1987 Pontiac Grand Am, N/A — Not compatible with vehicles with less than 105 amps capacity.; Premium Remanufactured

What This Alternator Helps Address

• Low battery charging caused by a worn alternator
• Dim lights or electrical instability at idle
• Charging system warning lights
• Voltage output loss from aging internal components
• Accessory performance issues tied to weak system voltage

Installation Notes and Tips

Verify the vehicle’s charging system requirements before installation, especially on applications noted for 105 amp capacity. Confirm pulley style, rotation direction, and regulator configuration match the original unit before swapping the alternator. This part cross-references Delco/Delphi applications (e.g., 1101123, 1101124) for the same application.

Quality Assurance

Remy Premium Remanufactured parts are remanufactured to restore core charging-system function for direct replacement use. Part Number 20303 is built to OE-style specifications for the listed Oldsmobile and Pontiac applications, including 1991 Oldsmobile Cutlass Calais and 1988-1991 Pontiac Grand Am.