MPA Electrical 8237603 Alternator

Remanufactured 130 Amp Alternator

MPA Electrical Part Number 8237603 is a remanufactured Delco alternator built for 12-volt charging systems with a 130 amp output. It uses an internal regulator, internal fan, clockwise rotation, and a 6-groove serpentine pulley with a 3:00 clock position for direct replacement applications.

This remanufactured alternator is listed for a wide range of GM trucks, SUVs, and vans, including Chevrolet Silverado, Tahoe, Suburban, Avalanche, Express, and GMC Sierra, Yukon, and Savana models. It is also listed for 2002 Cadillac Escalade and Escalade EXT applications that use the Delco 130 amp setup.

• 130 amp output for factory-style charging performance
• 12-volt alternator with internal voltage regulator
• Internal fan design
• 6-groove serpentine pulley
• Clockwise rotation with 3:00 clock position
• Remanufactured Delco unit from MPA Electrical

Product Details and Fitment

MPA Electrical 8237603 is a remanufactured alternator for vehicles that use a Delco 130 amp charging system. It is a direct-fit electrical replacement for many 1999-2002 Chevrolet Silverado 1500, Silverado 2500, Silverado 3500, GMC Sierra 1500, Sierra 2500, Sierra 3500, and related GM full-size truck and SUV platforms. This part cross-references Anchor 8274 for the same application.

Compatible With 2002 Cadillac Escalade, 2002 Cadillac Escalade EXT, 2002 Chevrolet Avalanche 1500, 2002 Chevrolet Avalanche 2500, 2002 Chevrolet C1500, 2001-2002 Chevrolet Express 1500, 2001-2002 Chevrolet Express 2500, 2001-2002 Chevrolet Express 3500, 1999-2002 Chevrolet Silverado 1500, 2001-2002 Chevrolet Silverado 1500 HD, 1999-2002 Chevrolet Silverado 2500, 2001-2002 Chevrolet Silverado 2500 HD, 2001-2002 Chevrolet Silverado 3500, 2001-2002 Chevrolet Suburban 1500, 2000-2002 Chevrolet Suburban 1500, 2001-2002 Chevrolet Suburban 2500, 2000-2002 Chevrolet Tahoe, 2001-2002 GMC Savana 1500, 2001-2002 GMC Savana 2500, 2001-2002 GMC Savana 3500, 1999-2002 GMC Sierra 1500, 2001-2002 GMC Sierra 1500 HD, 1999-2002 GMC Sierra 2500, 2001-2002 GMC Sierra 2500 HD, 2001-2002 GMC Sierra 3500, 2000-2002 GMC Yukon, 2000-2002 GMC Yukon XL 1500, and 2000-2002 GMC Yukon XL 2500.

Common Problems This Part Can Address

• Battery warning light caused by low charging output
• Dim headlights or electrical accessories that lose power at idle
• Slow battery recovery after starting
• Charging system failure from a worn alternator
• Voltage instability in Delco-equipped GM trucks, SUVs, and vans

Installation Notes

Verify pulley groove count, clock position, rotation, and amperage before installation. Confirm the vehicle uses a Delco 130 amp alternator setup, especially on 2001-2002 Chevrolet Silverado 3500 and 2000-2001 Chevrolet Suburban 2500 applications that list specific charging-system notes. Compare the original unit to the replacement before mounting and check belt alignment after installation.

Quality Assurance

MPA Electrical remanufactured parts are rebuilt for replacement use in factory-style charging systems. This alternator is remanufactured and specified with Delco manufacturer data, internal regulation, and OE-style fitment details for the listed GM applications.