MPA Electrical 7861411 Alternator

Remanufactured 100 Amp Alternator for GM Vans

MPA Electrical 7861411 is a remanufactured 12-volt alternator built for GM charging-system applications that use a Delco-style unit with an internal regulator, external fan, clockwise rotation, and a 4-groove serpentine pulley. It is specified at 100 amps and is a direct-fit option for select Chevrolet G10, G20, and G30 vans, as well as GMC G1500, G2500, and G3500 models.

This alternator is a practical replacement for vehicles needing a 100 amp charging output and the correct pulley, clocking, and rotation for the original accessory drive layout. Part number 7861411 is also referenced by BBB Industries 7861-11 for the same application.

Key Features

• 100 amp output for 12-volt charging systems
• Internal regulator for simplified electrical control
• External fan design
• Clockwise rotation
• 4-groove serpentine pulley
• Delco manufacturer style
• Clock position: 11:00
• Remanufactured by MPA Electrical

Product Details

MPA Electrical 7861411 is a remanufactured alternator for GM full-size vans that require a Delco-style charging unit with a 4-groove serpentine pulley and 100 amp output. It is listed for 1987-1991 Chevrolet G10, G20, and G30 models without air conditioning when equipped with the optional 100 amp alternator, and for 1987-1991 GMC G1500, G2500, and G3500 models without air conditioning and with the same 100 amp alternator setup. The fitment data also identifies the correct clocking and clockwise rotation needed for proper alignment in the engine bay.

Compatible With 1987-1991 Chevrolet G10, G20, and G30, and 1987-1991 GMC G1500, G2500, and G3500 applications that use the specified 100 amp alternator configuration. This part cross-references BBB Industries 7861-11 for the same application.

Common Problems This Part Can Address

• Low charging voltage at the battery
• Battery warning light illumination
• Weak electrical output under accessory load
• Alternator noise or bearing wear
• Charging-system failure from a worn original unit

Installation Notes and Tips

Verify pulley groove count, clock position, rotation, and regulator style before installation. This alternator is listed for vehicles without air conditioning and with the specified 100 amp alternator configuration, so confirm the original application details on the vehicle before ordering. Check belt alignment, wiring connections, and charging voltage after installation to confirm proper operation.

Quality Assurance

MPA Electrical supplies this unit as a remanufactured alternator for direct replacement use in the listed GM applications. The remanufactured format supports a cost-effective repair path while maintaining the required electrical and mounting specifications for the original vehicle setup.