MPA Electrical 14007 Alternator

Remanufactured 150 Amp Alternator

MPA Electrical Part Number 14007 is a remanufactured 12-volt alternator built for vehicles that use a Nippondenso charging system with an internal regulator and internal fan. It delivers 150 amps, uses a 6-groove serpentine pulley, and rotates clockwise for the listed applications.

This remanufactured alternator is a direct-fit charging component for Chevrolet Express, GMC Savana, Silverado HD, Sierra HD, and related applications that call for a 150 amp Nippondenso-style unit. The MPA Electrical remanufactured line focuses on restoring the alternator to service-ready condition for OE-style replacement needs.

Key Features

• MPA Electrical remanufactured alternator, Part Number 14007
• 150 amp output for 12-volt charging systems
• Internal regulator and internal fan
• Nippondenso manufacturer style
• 6-groove serpentine pulley
• Clockwise rotation
• Clock position: 1:00

Fitment Details

• Fits 2021-2026 Chevrolet Express 2500, N/A
• Fits 2021-2026 Chevrolet Express 3500, N/A
• Fits 2021-2026 GMC Savana 2500, N/A
• Fits 2021-2026 GMC Savana 3500, N/A
• Fits 2017-2020 Chevrolet Express 2500, N/A; fits alternators rated at 150 amps
• Fits 2017-2020 Chevrolet Express 3500, N/A; fits alternators rated at 150 amps
• Fits 2017-2020 GMC Savana 2500, N/A; fits alternators rated at 150 amps
• Fits 2017-2020 GMC Savana 3500, N/A; fits alternators rated at 150 amps
• Fits 2015-2019 Chevrolet Silverado 2500 HD, N/A; fits alternators rated at 150 amps
• Fits 2015-2019 Chevrolet Silverado 3500 HD, N/A; fits alternators rated at 150 amps
• Fits 2016-2019 Chevrolet Suburban 3500 HD, N/A; fits alternators rated at 150 amps
• Fits 2017-2019 GMC Sierra 2500 HD, N/A; fits alternators rated at 150 amps
• Fits 2015 GMC Sierra 2500 HD, N/A; fits alternators rated at 150 amps
• Fits 2017-2019 GMC Sierra 3500 HD, N/A; fits alternators rated at 150 amps
• Fits 2015 GMC Sierra 3500 HD, N/A; fits alternators rated at 150 amps
• Fits 2016-2018 Chevrolet Silverado 3500, N/A
• Fits 2016 GMC Sierra 2500 HD, N/A; w/ Nippondenso 150 amp alt
• Fits 2016 GMC Sierra 3500 HD, N/A; w/ Nippondenso 150 amp alt.
• Fits 2015 Chevrolet Silverado 1500, N/A; w/ 150 amp alt., 6S standard pulley
• Fits 2015 Chevrolet Silverado 3500, N/A; fits alternators rated at 150 amps

Common Problems This Part Can Address

• Battery warning light caused by weak charging output
• Low-voltage conditions during accessory or electrical load demand
• Charging system failure from a worn alternator
• Dim lights, slow cranking, or intermittent electrical performance
• Noise or charging inconsistency from a failing internal regulator or bearing assembly

Installation Notes and Tips

Verify pulley groove count, rotation, amperage rating, and connector style against the original unit before installation. This alternator is listed for applications using a Nippondenso 150 amp configuration, so matching the OE-style mounting and belt drive setup is important for proper fitment.

Part Number 14007 cross-references Dorman - HELP 14007 for the same application.

Quality Assurance

MPA Electrical remanufactured alternators are rebuilt for charging-system replacement use and are intended to meet the specifications called out in the application data, including 150 amp output, internal regulation, and the listed pulley configuration.