BBB Industries 13939 Alternator

BBB Industries 13939 Reman Alternator Overview

BBB Industries 13939 is a remanufactured 12-volt alternator built for charging-system replacement on select Nissan applications. This REMAN ALTERNATOR uses an internal voltage regulator, air cooling, and a clutch-style decoupled pulley to match the OE-style charging setup on the vehicle.

Compatible with 2002-2006 Nissan Altima and 2002-2006 Nissan Sentra, this alternator is specified at 110 amps and uses a serpentine belt drive with a 6-groove pulley. The OE manufacturer listed is Hitachi, and the unit is configured with clockwise rotation and a negative polarity layout.

Key Features

• BBB Industries REMAN ALTERNATOR, part number 13939
• 110 amp output for 12-volt charging systems
• Internal voltage regulator for integrated control
• Air-cooled design with internal fan
• Clutch pulley with decoupled pulley design
• 6-groove serpentine pulley included
• OE manufacturer reference: Hitachi
• Plug clock position: 1

Product Details

BBB Industries 13939 is a reman alternator engineered around the OE configuration used on select Nissan compact and midsize vehicles. The unit features a 2-3/16 inch (56 mm) outside pulley diameter, clockwise rotation, and internal regulation to support proper charging-system operation. For shoppers searching for a 2002-2006 Nissan Altima alternator or a 2002-2006 Nissan Sentra alternator, this part number 13939 provides a direct-fit replacement path based on the listed fitment.

This part cross-references Hitachi-style applications such as LR1100-734 and LR1110-726 for the same application.

Common Charging Issues It Can Address

• Battery warning light caused by alternator output loss
• Low charging voltage during driving
• Dim headlights or unstable electrical performance
• Accessory operation problems tied to weak system voltage
• Noise or pulley-related charging-system concerns on the original unit

Installation Notes

Verify pulley style, plug clock position, amperage rating, and rotation direction before installation. Confirm the vehicle uses the listed serpentine belt configuration and compare the OE connector layout to the existing alternator. Always inspect the belt, tensioner, and charging cables during replacement to help ensure the charging system operates correctly after installation.

Quality Assurance

BBB Industries remanufactures this alternator to meet the listed OE-style specifications for the application. Part number 13939 is built for the confirmed Nissan Altima and Nissan Sentra fitments shown above.