Remy 20317 Alternator

Remanufactured Alternator for GM Compact Cars

Remy 20317 is a premium remanufactured 12-volt alternator built for specific Pontiac, Buick, and Oldsmobile applications that require a 105-amp charging system. It uses an internal voltage regulator, clockwise rotation, an external fan, and includes the pulley for a direct replacement setup.

Compatible With 1987-1990 Pontiac Sunbird, 1987-1989 Pontiac Grand Am, 1987-1988 Buick Skyhawk, and 1987-1988 Oldsmobile Firenza in the listed 105-amp configurations. This Remy 20317 alternator is a practical OE-style replacement for vehicles originally equipped with Delco/Delphi charging components.

Key Features

• 105-amp amperage rating for the specified charging system
• 12-volt alternator with internal voltage regulator
• Clockwise rotation
• External fan design
• Pulley included
• Premium remanufactured construction
• OE manufacturer reference: Delco/Delphi

Product Details

Remy Premium Remanufactured line focuses on replacement electrical components rebuilt to match the original application requirements. Part number 20317 is engineered for vehicles that use a 105-amp alternator and the listed mounting and electrical configuration, making it a fitment-specific solution for charging system service. If you are searching for a 105 amp alternator for Pontiac Sunbird, Pontiac Grand Am, Buick Skyhawk, or Oldsmobile Firenza, this unit matches the documented application data.

This part cross-references 1101144 and 1101145 for the same application.

What It Helps Fix

• Battery warning light caused by alternator output loss
• Low charging voltage at the battery
• Dim lights or electrical instability from weak charging output
• Charging system failure on 105-amp equipped vehicles
• Noise or wear related to a failing alternator assembly

Installation Notes and Tips

• Verify the vehicle is equipped with a 105-amp charging system before ordering.
• Confirm clockwise rotation and internal regulator configuration match the original unit.
• Check pulley alignment and belt condition during replacement.
• Inspect battery cables, grounds, and charging circuit connections before installing the new alternator.
• Use the fitment notes for AC-equipped and non-AC applications where listed.

Quality Assurance

Remy Premium Remanufactured parts are remanufactured to meet the application requirements of the original OE-style charging system. Part number 20317 is built for Delco/Delphi-based fitments and the specified 105-amp configuration.

• Fits 1990 Pontiac Sunbird, N/A; not compatible with vehicles with less than 105 amps capacity.
• Fits 1987-1988 Pontiac Sunbird, N/A; not compatible with vehicles with less than 105 amps capacity.
• Fits 1987-1989 Pontiac Grand Am, N/A; not compatible with vehicles with less than 105 amps capacity.
• Fits 1989 Pontiac Sunbird, N/A; w/AC; 105 Amps.
• Fits 1989 Pontiac Sunbird, N/A; Opt; 105 Amps.
• Fits 1988 Buick Skyhawk, N/A; w/AC; 105 Amps.
• Fits 1988 Oldsmobile Firenza, N/A; w/AC; 105 Amps.
• Fits 1987 Buick Skyhawk, N/A; not compatible with vehicles with less than 105 amps capacity.
• Fits 1987 Oldsmobile Firenza, N/A; not compatible with vehicles with less than 105 amps capacity.