MPA Electrical 13794N Alternator

Alternator for Toyota Tacoma, 4Runner, Tundra, and T100

MPA Electrical Part Number 13794N is a 12-volt, 80-amp alternator built with an internal regulator and internal fan for select Toyota charging systems. It is a direct-fit replacement for applications using a Nippondenso-style unit with a 4-groove serpentine pulley and clockwise rotation.

Key Features

• 80 amps output for OE-style charging performance
• 12-volt alternator with internal voltage regulator
• Internal fan design for integrated cooling
• 4:00 clock position and clockwise rotation
• 4-groove serpentine pulley configuration
• Manufacturer style: Nippondenso
• Part number 13794N for easy identification

Fitment Details

• Fits 2000-2004 Toyota Tacoma, N/A
• Fits 1995-1997 Toyota Tacoma, N/A
• Fits 1999-2002 Toyota 4Runner, N/A
• Fits 1996-1997 Toyota 4Runner, N/A
• Fits 2000-2002 Toyota Tundra, N/A, w/ 80 amp alt.; New
• Fits 1995-1998 Toyota T100, N/A

Detailed Description

This MPA Electrical alternator is specified for Toyota Tacoma, Toyota 4Runner, Toyota Tundra, and Toyota T100 applications that use the listed Nippondenso configuration. The 80-amp output, internal regulator, and 12-volt design support stable charging system operation, while the 4-groove serpentine pulley and clockwise rotation help ensure proper belt alignment and fitment. Part number 13794N is also referenced as BBB Industries 13794 for the same application.

For buyers searching for a Toyota Tacoma alternator, Toyota 4Runner alternator, or Toyota T100 charging system replacement, this unit matches the listed OE-style electrical and mounting specifications. It is also a fit for 2000-2002 Toyota Tundra models noted with an 80 amp alternator.

Common Issues This Part May Resolve

• Battery warning light caused by low alternator output
• Weak charging performance at idle or under electrical load
• Dim lights or fluctuating electrical system voltage
• Charging failure from a worn internal regulator
• Noise or belt tracking concerns related to a mismatched pulley setup

Installation Notes and Tips

Verify pulley groove count, rotation, clock position, and amperage before installation. Confirm the vehicle uses the listed Nippondenso-style alternator configuration and compare the original connector and mounting points to the replacement unit. After installation, check belt condition, charging voltage, and battery state of charge to confirm proper system operation.

Quality Assurance

MPA Electrical supplies new replacement electrical components for automotive charging and starting systems. Part Number 13794N is built to the listed specifications for direct replacement use in the confirmed Toyota applications.