BBB Industries N11391 Alternator

BBB Industries N11391 Alternator Overview

BBB Industries NEW ALTERNATOR N11391 is a 12-volt, 130-amp replacement alternator built for select Acura and Honda applications. It uses an internal voltage regulator, air cooling, and a conventional pulley setup to match the original charging system layout.

The NEW ALTERNATOR product line from BBB Industries focuses on direct-fit electrical replacement parts for charging-system service. This alternator is built around Nippondenso OE manufacturer specifications and includes the pulley for a straightforward replacement on the listed vehicles.

Key Features

• 130 amp amperage rating for OE-style charging output
• 12V alternator with internal voltage regulator
• Air-cooled design with internal fan
• 6-groove serpentine pulley included
• Clockwise rotation
• Negative polarity
• OE manufacturer reference: Nippondenso
• Part number: N11391

Detailed Description

BBB Industries N11391 is a new alternator for vehicles that use a Nippondenso-style charging system. It features a conventional pulley, 71 mm outside pulley diameter, 11 o’clock plug clock position, and a serpentine belt interface with six pulley grooves. This configuration supports direct replacement service for 2008-2014 Acura TL, TSX, MDX, ZDX, and RL, plus 2008-2011 Honda Odyssey, Pilot, and Ridgeline applications listed in the fitment data. The N11391 part number is also referenced for interchange purposes with related OE and aftermarket numbers.

This part cross-references 31100-RGW-A01 and 104210-5920 for the same application.

What It Helps Fix

• Battery warning light caused by alternator output loss
• Low charging voltage at idle or under load
• Dim lights or electrical instability while driving
• Charging-system failure after alternator wear
• Accessory performance issues tied to weak system voltage

Installation Notes and Tips

Verify pulley groove count, plug clock position, rotation direction, and OE manufacturer match before installation. Confirm the vehicle uses a serpentine belt drive and the listed 12V, 130-amp charging specification. Inspect the belt, tensioner, and electrical connectors during replacement to help avoid repeat charging-system faults. Fits 2009-2014 Acura TL, N/A. Fits 2010-2014 Acura TSX, N/A. Fits 2010-2013 Acura MDX, N/A. Fits 2010-2013 Acura ZDX, N/A. Fits 2009-2012 Acura RL, N/A. Fits 2009-2011 Honda Pilot, N/A. Fits 2009-2011 Honda Ridgeline, N/A. Fits 2008-2010 Honda Odyssey, N/A.

Quality Assurance

BBB Industries supplies replacement electrical components built to match listed OE-style specifications for the applications shown. This alternator is a new unit, not a remanufactured core, and is specified for the fitment and electrical requirements provided above.