Remy 21108 Alternator

Remanufactured Alternator for GM Trucks and SUVs

Remy 21108 is a Premium Remanufactured 12-volt alternator built for GM applications that require a 105-amp charging output. It features an internal fan, internal voltage regulator, clockwise rotation, and a pulley included for direct replacement service.

Compatible With 1996-2000 Chevrolet C2500, C3500, Express 1500, Express 2500, Express 3500, K2500, K3500, Tahoe; 1996-2000 GMC C2500, C3500, K2500, K3500, Savana 1500, Savana 2500, Savana 3500, Yukon; 1999-2000 Cadillac Escalade; and additional 1996-1999 Chevrolet and GMC light-duty truck and van applications listed below. This part cross-references Delco/Delphi 10463651 and 10463652 for the same application.

Key Features

• 105-amp amperage rating for factory-style charging output
• 12-volt electrical system application
• Internal fan design for integrated cooling
• Internal voltage regulator for simplified replacement
• Pulley included
• Clockwise rotation
• Remanufactured to Premium Remanufactured standards
• OE manufacturer reference: Delco/Delphi

Product Details

Remy 21108 is a remanufactured alternator for GM trucks, vans, and SUVs that use a 105-amp internal-fan charging system. The unit is specified with internal regulation and clockwise rotation, making it a direct-fit electrical replacement for many Chevrolet Express, GMC Savana, Tahoe, Yukon, and related C/K-series applications. Use this alternator when replacing a worn charging unit on vehicles that match the listed amperage and configuration requirements.

Common Problems This Part Can Address

• Low battery charge or repeated battery drain
• Dim headlights or unstable electrical output
• Battery warning light or charging system warning
• Alternator noise from a worn charging unit
• Charging failure caused by internal alternator wear

Installation Notes and Fitment Tips

• Verify the vehicle uses a 105-amp alternator before ordering.
• Check the VIN-specific notes for 1996 Chevrolet Express and Savana applications.
• Confirm pulley style, rotation direction, and internal regulator configuration match the original unit.
• Fits 1999-2000 Cadillac Escalade, N/A.
• Fits 1996-2000 Chevrolet C2500, N/A.
• Fits 1996-2000 Chevrolet C3500, N/A.
• Fits 1996-2000 Chevrolet Express 1500, N/A.
• Fits 1996-2000 Chevrolet Express 2500, N/A.
• Fits 1997-2000 Chevrolet Express 3500, N/A.
• Fits 1996-2000 Chevrolet K2500, N/A.
• Fits 1996-2000 Chevrolet K3500, N/A.
• Fits 1996-2000 Chevrolet Tahoe, N/A.
• Fits 1996-2000 GMC C2500, N/A.
• Fits 1996-2000 GMC C3500, N/A.
• Fits 1996-2000 GMC K2500, N/A.
• Fits 1996-2000 GMC K3500, N/A.
• Fits 1996-2000 GMC Savana 1500, N/A.
• Fits 1996-2000 GMC Savana 2500, N/A.
• Fits 1996-2000 GMC Savana 3500, N/A.
• Fits 1996-2000 GMC Yukon, N/A.
• Fits 1996-1999 Chevrolet C1500, N/A.
• Fits 1996-1999 Chevrolet C1500 Suburban, N/A.
• Fits 1996-1999 Chevrolet C2500 Suburban, N/A.
• Fits 1996-1999 Chevrolet K1500, N/A.
• Fits 1996-1999 Chevrolet K1500 Suburban, N/A.
• Fits 1996-1999 Chevrolet K2500 Suburban, N/A.
• Fits 1996-1999 GMC C1500, N/A.
• Fits 1996-1999 GMC C1500 Suburban, N/A.
• Fits 1996-1999 GMC C2500 Suburban, N/A.
• Fits 1996-1999 GMC K1500, N/A.
• Fits 1996-1999 GMC K1500 Suburban, N/A.
• Fits 1996-1999 GMC K2500 Suburban, N/A.
• Fits 1996-1999 Chevrolet Astro, N/A.
• Fits 1996-1999 GMC Safari, N/A.
• Fits 1996-1997 Chevrolet Blazer, N/A.
• Fits 1996-1997 Chevrolet S10, N/A.
• Fits 1996-1997 GMC Jimmy, N/A.
• Fits 1996-1997 GMC Sonoma, N/A.
• Fits 1997 Isuzu Hombre, N/A.
• Fits 1996-1997 Oldsmobile Bravada, N/A.

Quality Assurance

Remy Premium Remanufactured parts are built as remanufactured OE-style replacements for charging system service. Part number 21108 is matched to Delco/Delphi reference applications and is intended for vehicles that require the listed 105-amp configuration.