BBB Industries N13302 Alternator

BBB Industries N13302 Alternator Overview

The BBB Industries NEW ALTERNATOR N13302 is a 12-volt, 120-amp replacement alternator built for select Dodge Ram 2500 and Ram 3500 trucks, along with Dodge D250, D350, W250, and W350 applications. It uses an external voltage regulator setup, a serpentine pulley, and a Nippondenso OE manufacturer design reference for direct-fit service.

BBB Industries NEW ALTERNATOR line focuses on replacement charging components for vehicle-specific applications. This N13302 alternator follows the OE-style configuration needed for the listed Dodge truck fitments, including clockwise rotation, internal fan cooling, and an 8-groove pulley.

Key Features

• 120 amp output for charging-system replacement
• 12V alternator with external voltage regulator type
• Serpentine belt pulley with 8 grooves included
• Clockwise rotation with internal fan and air cooling
• OE manufacturer reference: Nippondenso
• Plug clock position: 1
• Outside pulley diameter: 2-9/16 in. (65 mm)
• Cross-reference part numbers include 121000-4080 and 5234374

Detailed Description

Part number N13302 is a BBB Industries alternator for charging-system service on 1990-1993 Dodge D250, D350, W250, and W350 models, plus 1994-1998 Dodge Ram 2500 and Ram 3500 trucks. It is configured as a 120 amp, 12-volt unit with a conventional pulley, negative polarity, and external voltage regulator type. The pulley is included, and the unit is set up for serpentine belt applications with clockwise rotation.

This alternator is a direct replacement choice for owners searching for a 1994-1998 Dodge Ram 2500 alternator, a 1994-1998 Dodge Ram 3500 alternator, or a 1990-1993 Dodge D250 alternator. It also serves as a fitment match for 1990-1993 Dodge D350, W250, and W350 charging-system repairs. Part number N13302 is also referenced by 121000-4150 and 56027221 for the same application.

What It Helps Fix

• Battery warning light caused by alternator output loss
• Low charging voltage at the battery
• Dim lights or electrical instability while driving
• Charging-system failure on Dodge Ram 2500 and Ram 3500 trucks
• Alternator noise or pulley-related charging issues

Installation Notes

Confirm the vehicle year, model, pulley configuration, plug clock position, and voltage regulator setup before ordering. This alternator is built for applications with an external regulator and a serpentine belt drive, so matching the OE electrical and pulley specifications is important for proper installation. Verify fitment and compatibility with your vehicle before purchasing.

Quality Assurance

BBB Industries supplies replacement electrical components for OE-style service applications. The N13302 alternator is built to match the listed charging-system specifications for the confirmed Dodge truck fitments.