MPA Electrical 14859 Alternator

Remanufactured Alternator for Isuzu Pickup and Trooper

MPA Electrical Part Number 14859 is a remanufactured 12-volt alternator built for select 1986-1987 Isuzu Pickup and Isuzu Trooper applications. It uses a Hitachi design with an internal regulator and internal fan for straightforward charging-system replacement on the correct vehicle.

Key Features

• Remanufactured alternator from MPA Electrical
• 50 amp output for 12-volt charging systems
• Hitachi manufacturer design
• Internal regulator and internal fan
• 1-groove V-belt pulley
• Clockwise rotation
• Clock position: 1:00
• Part number 14859 for easy identification

Product Details

This MPA Electrical remanufactured alternator is specified for 1986-1987 Isuzu Pickup and 1986-1987 Isuzu Trooper, with the 1987 Trooper fitment listed through 1/87. The unit is configured as a 50 amp, 12-volt alternator with an internal regulator, internal cooling fan, and a 1-groove V-belt pulley. If you are replacing a charging unit on an Isuzu Pickup or Isuzu Trooper, Part Number 14859 provides the correct Hitachi-style configuration for the listed applications.

MPA Electrical’s remanufactured product line focuses on rebuilt electrical components for direct replacement use. For buyers searching for an Isuzu Pickup alternator or an Isuzu Trooper alternator, this remanufactured unit is built around the original equipment-style layout and specifications shown here.

This part cross-references Dorman - HELP 14859 for the same application.

Common Problems This Part Can Address

• Low battery charging on the listed Isuzu Pickup and Trooper applications
• Dim lights or electrical output loss caused by a failing alternator
• Battery warning light concerns related to charging-system failure
• Noise or charging irregularities from a worn alternator assembly
• Replacement needs for a damaged or non-functioning Hitachi alternator

Installation Notes and Tips

Verify pulley style, rotation, clock position, and electrical connector match the original unit before installation. Confirm the vehicle is one of the listed applications: 1986-1987 Isuzu Pickup, 1986 Isuzu Trooper, or 1987 Isuzu Trooper built through 1/87. Because this alternator uses an internal regulator, the vehicle charging circuit should be checked for wiring condition, belt tension, and battery health during replacement.

Quality Assurance

This remanufactured alternator is produced by MPA Electrical and built to the specifications listed for the confirmed Isuzu applications. Part Number 14859 is identified for direct replacement matching on the supported vehicles.