Remy 21131 Alternator

Remanufactured Alternator for Aurora and Allante

The Remy 21131 is a premium remanufactured 12-volt alternator built for charging-system service on select Cadillac and Oldsmobile applications. It delivers 140 amps, uses an internal voltage regulator, and includes the pulley for a direct replacement setup.

• 140 amp output for stable charging performance
• Premium remanufactured construction
• 12-volt alternator with internal voltage regulator
• External fan design
• Clockwise rotation
• Pulley included
• OE manufacturer reference: Delco/Delphi

Product Details

Remy Premium Remanufactured part number 21131 is built for vehicles that use a Delco/Delphi-style charging system. This alternator is a direct-fit replacement for 1995-1999 Oldsmobile Aurora and 1993 Cadillac Allante applications, with fitment matched to the original charging configuration. The Remy 21131 is a practical choice when you need a replacement alternator that matches the vehicle’s 12V electrical system, 140 amp rating, clockwise rotation, and internal regulator layout.

This part cross-references 1101850 and 10463366 for the same application.

Common Uses

• Charging warning light or battery light concerns
• Low system voltage during driving
• Battery not maintaining charge
• Electrical accessories dimming under load
• Alternator replacement on a 1995-1999 Oldsmobile Aurora or 1993 Cadillac Allante

Installation Notes

Verify pulley alignment, connector style, and mounting points against the original unit before installation. Confirm clockwise rotation and internal regulator configuration match the vehicle’s factory setup. After installation, check charging voltage at idle and under electrical load to confirm proper operation.

Quality Assurance

Remy Premium Remanufactured components are remanufactured to restore dependable electrical performance for service replacement use. Part number 21131 is built to OE-style specifications for the listed applications.