Remy 20212 Alternator

Remanufactured 108-Amp Alternator for GM Applications

The Remy Premium Remanufactured 20212 is a 12-volt alternator built for select Chevrolet, GMC, and Pontiac vehicles that use an external fan and internal voltage regulator. With a 108-amp output and included pulley, it supports charging-system replacement on a wide range of 1983-1987 GM cars and trucks.

Use this Remy 20212 alternator when you need an OE-style remanufactured charging unit for applications such as Chevrolet Caprice, Camaro, Impala, and GMC C/K-series trucks. It cross-references Delco/Delphi-style part numbers for the same application.

Key Features

• Remanufactured alternator from Remy Premium Remanufactured
• 108-amp amperage rating for select GM charging systems
• 12-volt electrical system
• Internal voltage regulator
• External fan design
• Pulley included
• Clockwise rotation
• OE manufacturer reference: Delco/Delphi
• Part number: 20212

Detailed Description

Remy 20212 is a remanufactured alternator engineered for direct replacement in confirmed Chevrolet, GMC, and Pontiac fitments from 1983-1987. It is specified as a 108-amp unit with an internal regulator, external fan, and clockwise rotation, making it a practical match for vehicles that require this exact charging-system configuration. The included pulley helps simplify replacement on supported applications.

Compatible vehicle coverage includes 1983-1986 Chevrolet C10, C10 Suburban, C20, C20 Suburban, C30, K10, K10 Suburban, K20, K20 Suburban, K30, and K5 Blazer; 1983-1986 GMC C1500, C1500 Suburban, C2500, C2500 Suburban, C3500, Jimmy, K1500, K1500 Suburban, K2500, K2500 Suburban, and K3500; plus 1985-1987 Chevrolet Caprice, 1985-1986 Chevrolet Camaro and Impala, 1985 Chevrolet P20 and P30, 1985 GMC P2500 and P3500, and 1985-1986 Pontiac Firebird and Parisienne.

This part cross-references Delco/Delphi-style numbers such as 1101236 and 1101297 for the same application.

What It Helps Address

• Battery warning light caused by weak alternator output
• Low charging voltage at idle or under load
• Dim headlights and electrical accessories
• Intermittent charging on older GM vehicles
• Replacement of a worn or failed factory alternator

Installation Notes and Tips

• Verify the vehicle uses a 12-volt system with a 108-amp alternator specification.
• Confirm pulley style, rotation direction, and regulator type before installation.
• Check belt condition, wiring connections, and battery state during replacement.
• Match the application notes carefully, especially Caprice and Impala listings with or without A/C.
• Inspect the charging circuit after installation to confirm proper output.

Quality Assurance

Remy Premium Remanufactured parts are remanufactured to meet the listed OE-style application requirements for the confirmed fitments above. The 20212 alternator is built around the specified Delco/Delphi reference design and configuration details for consistent replacement on supported Chevrolet, GMC, and Pontiac vehicles.