BBB Industries N13742 Alternator

BBB Industries N13742 Alternator Overview

BBB Industries NEW ALTERNATOR N13742 is a 12-volt charging system replacement built for select Dodge and Jeep applications. It delivers 136 amps of output with an external voltage regulator, serpentine belt drive, and a conventional pulley for direct-fit service on listed vehicles.

The BBB Industries NEW ALTERNATOR line focuses on replacement charging components for repair work that calls for OE-style fitment and electrical specifications. This N13742 alternator matches the listed Nippondenso OE manufacturer reference and is built for vehicles that use a clockwise-rotation, air-cooled design.

Key Features

• 136-amp amperage rating for charging system output
• 12-volt alternator with external voltage regulator type
• Air-cooled design with internal fan
• Serpentine belt pulley with 7 grooves
• Conventional pulley included
• Clockwise rotation direction
• OE manufacturer reference: Nippondenso
• Part number: N13742

Detailed Product Description

This BBB Industries alternator is engineered for vehicles that require a 136-amp charging unit with a 1 o’clock plug clock position and negative polarity. It uses a 2-1/2 inch (63 mm) outside pulley diameter and an external regulator setup, making it a direct specification match for the listed Dodge Ram, Dakota, Durango, B-Series, and Jeep Grand Cherokee applications. The N13742 part number is also referenced for interchange purposes against select OE and aftermarket numbers.

This part cross-references 121000-4170 and 56027913 for the same application.

Vehicle Fitment

• Fits 1997-1998 Dodge B1500, N/A, Opt; 136 Amps; NEW ALTERNATOR
• Fits 1997-1998 Dodge B2500, N/A, Opt; 136 Amps; NEW ALTERNATOR
• Fits 1997-1998 Dodge B3500, N/A, Opt; 136 Amps; NEW ALTERNATOR
• Fits 1997-1998 Dodge Dakota, N/A, Opt; 136 Amps; NEW ALTERNATOR
• Fits 1998 Dodge Durango, N/A, Opt; 136 Amps; NEW ALTERNATOR
• Fits 1997-1998 Dodge Ram 1500, N/A, Opt; 136 Amps; NEW ALTERNATOR
• Fits 1997-1998 Dodge Ram 2500, N/A, Opt; 136 Amps; NEW ALTERNATOR
• Fits 1997-1998 Dodge Ram 3500, N/A, Opt; 136 Amps; NEW ALTERNATOR
• Fits 1998 Jeep Grand Cherokee, N/A, 136 Amps; NEW ALTERNATOR
• Fits 1997-1998 Jeep Grand Cherokee, N/A, Opt; 136 Amps; NEW ALTERNATOR

Installation Notes and Tips

Verify pulley groove count, plug clock position, rotation direction, and regulator type before installation. Confirm the vehicle uses the listed 136-amp configuration and compare the original unit to part number N13742 to ensure the electrical and mounting specifications match.

Quality Assurance

BBB Industries supplies replacement electrical components for service applications, and this alternator is built to match the listed OE-style specifications for the covered Dodge and Jeep vehicles. Review the vehicle’s charging system condition, wiring, and belt drive components during replacement to help ensure proper operation.