BBB Industries 13840 Alternator

BBB Industries 13840 Reman Alternator Overview

BBB Industries 13840 is a remanufactured 12-volt alternator built for Mitsubishi charging-system applications that call for 90 amps. It features an internal voltage regulator, air cooling, an internal fan, and a conventional pulley with five grooves for serpentine belt drive.

Compatible With Mitsubishi Eclipse, Mirage, and Galant applications, this BBB Industries reman alternator is built around OE Mitsubishi specifications for direct-fit replacement service. The 13840 alternator includes the pulley and uses a clockwise rotation with a negative polarity configuration.

Key Features

• 90-amp amperage rating for factory-style charging output
• 12-volt alternator with internal voltage regulator
• Air-cooled design with internal fan
• Conventional pulley included, 5-groove serpentine belt type
• Clockwise rotation and negative polarity
• OE manufacturer reference: Mitsubishi
• Plug clock position: 4

Product Details

The BBB Industries REMAN ALTERNATOR line focuses on remanufactured electrical components built to match original equipment fit and function. Part number 13840 is a reman alternator for Mitsubishi charging systems that use a 90-amp unit with a serpentine belt drive and internal regulation. This part cross-references Mitsubishi OE numbers MD357737 and MD363639 for the same application.

Use BBB Industries 13840 when replacing a worn or failing alternator on a 1999 Mitsubishi Galant, a 1999-2002 Mitsubishi Mirage, or a 2000-2005 Mitsubishi Eclipse. The part number 13840 is also a useful reference when verifying the correct Mitsubishi alternator by amperage, pulley style, and plug position.

What This Alternator Helps Address

• Battery warning light caused by weak charging output
• Dim headlights or unstable electrical performance
• Battery drain from an alternator that no longer maintains system voltage
• Charging issues on Mitsubishi Eclipse, Mirage, or Galant models with a 90-amp alternator
• Noise or belt-drive concerns related to a worn alternator pulley assembly

Installation Notes

Verify the vehicle’s original amperage rating, plug clock position, pulley groove count, rotation direction, and belt type before installation. This alternator is configured for a serpentine belt system with a conventional pulley and internal regulator, so matching the OE electrical connector and mounting layout is important for proper fitment. Confirm compatibility against the vehicle application and OE reference numbers before replacing the original unit.

Quality Assurance

BBB Industries remanufactured alternators are built for OE-style replacement service and are identified here by part number 13840 for accurate catalog matching. The unit is specified with Mitsubishi OE manufacturer data and application-based fitment for 1999 Mitsubishi Galant, 1999-2002 Mitsubishi Mirage, and 2000-2005 Mitsubishi Eclipse.