BBB Industries 42072 Alternator

Reman Alternator for Ram 1500, 2500, 3500

BBB Industries REMAN ALTERNATOR 42072 is a 12-volt, 220-amp replacement alternator built for select Ram truck applications. It features an internal fan, air cooling, a clutch pulley, and an external voltage regulator setup for the specified OE-style charging system.

The BBB Industries reman alternator line focuses on remanufactured charging components for direct-fit replacement needs. Part number 42072 is built around Nippondenso OE architecture and is listed for Ram 1500, Ram 2500, and Ram 3500 applications with the correct pulley, plug clock position, and rotation direction.

Key Features

• 220-amp output for high-demand charging applications
• 12V alternator with clockwise rotation
• Clutch pulley included; 6-groove serpentine belt design
• Air-cooled unit with internal fan
• Negative polarity and external voltage regulator type
• OE manufacturer reference: Nippondenso
• Outside pulley diameter: 2-9/16 in. (65 mm)
• Plug clock position: 7

Detailed Description

BBB Industries 42072 is a remanufactured alternator for Ram charging-system service where a 220-amp output is required. It includes a decoupled clutch pulley and is configured for serpentine belt drive use, helping match the OE-style fitment and electrical layout on supported Ram 1500, Ram 2500, and Ram 3500 trucks. This part cross-references Mopar 56029644AB for the same application.

Compatible With 2014-2022 Ram 1500, 2500, and 3500 applications listed below, including primary alternator and dual-alternator configurations where noted. Part number 42072 is also referenced against 421000-7130, 421000-7131, and 56029644AA.

What It Helps Address

• Low charging output from a worn alternator
• Battery warning lights related to charging-system faults
• Dim lights or electrical instability under load
• Noise or pulley-related alternator issues
• Charging concerns on Ram trucks with 220-amp OE-style systems

Installation Notes

• Verify the vehicle’s alternator configuration, especially dual-alternator and primary-alternator notes.
• Confirm plug clock position 7, pulley type, and 6-groove serpentine belt alignment before installation.
• Check that the external voltage regulator arrangement matches the vehicle’s charging system.
• Inspect belt condition and charging-system wiring during replacement.
• Confirm fitment by year, make, model, and notes before ordering.

Quality Assurance

BBB Industries remanufactured electrical components are built for OE-style replacement applications. This alternator is remanufactured to match the specified Nippondenso-based design and listed fitment requirements for Ram truck charging-system service.

• Fits 2019-2022 Ram 1500 Classic, N/A
• Fits 2022 Ram 2500, N/A
• Fits 2022 Ram 3500, N/A
• Fits 2016-2021 Ram 2500, N/A, Primary Alt; Opt; 220 Amps; REMAN ALTERNATOR
• Fits 2016-2021 Ram 3500, N/A, Primary Alt; Opt; 220 Amps; REMAN ALTERNATOR
• Fits 2020 Ram 3500, N/A, Exc Dual Alt System; 220 Amps; REMAN ALTERNATOR
• Fits 2020 Ram 3500, N/A, Dual Alt System; Primary Alt; REMAN ALTERNATOR
• Fits 2018 Ram 1500, N/A, Opt; 220 Amps; REMAN ALTERNATOR
• Fits 2015 Ram 1500, N/A, Opt; 220 Amps; REMAN ALTERNATOR
• Fits 2016-2018 Ram 1500, N/A, 220 Amps; REMAN ALTERNATOR
• Fits 2014-2015 Ram 2500, N/A, Exc Dual Alt System; Opt; 220 Amps; REMAN ALTERNATOR
• Fits 2014-2015 Ram 3500, N/A, Exc Dual Alt System; Opt; 220 Amps; REMAN ALTERNATOR
• Fits 2014 Ram 1500, N/A, NDenso Unit; Opt; 220 Amps; REMAN ALTERNATOR
• Fits 2014 Ram 2500, N/A, NDenso Unit; Opt; 220 Amps; REMAN ALTERNATOR
• Fits 2014 Ram 3500, N/A, NDenso Unit; Opt; 220 Amps; REMAN ALTERNATOR