MPA Electrical 11391 Alternator

Remanufactured Alternator for Acura and Honda

MPA Electrical Part Number 11391 is a remanufactured 12-volt alternator built for select Acura and Honda applications. It uses an internal regulator, internal fan, clockwise rotation, and a 6-groove serpentine pulley to match the specified charging system setup.

This alternator is a direct-fit option for vehicles such as the Acura TL, TSX, MDX, ZDX, and RL, along with the Honda Pilot, Ridgeline, and Odyssey. It is built to the Nippondenso design and is intended for vehicles that require a 130-amp charging output.

Key Features

• 130 amps output for charging-system replacement
• 12-volt remanufactured alternator
• Internal regulator for integrated voltage control
• Internal fan design
• Clockwise rotation
• 6-groove serpentine pulley
• Clock position: 11:00
• Manufacturer design: Nippondenso

Detailed Description

MPA Electrical 11391 is a remanufactured alternator engineered for Acura and Honda vehicles that use the Nippondenso-style charging system. The 130-amp rating, internal regulator, and 6-groove serpentine pulley make it a practical replacement for vehicles that need stable electrical output for starting, lighting, and accessory operation. This part cross-references BBB Industries 11391 for the same application.

Compatible vehicle coverage includes 2009-2014 Acura TL, 2010-2014 Acura TSX, 2010-2013 Acura MDX, 2010-2013 Acura ZDX, 2009-2012 Acura RL, 2009-2011 Honda Pilot, 2009-2011 Honda Ridgeline, and 2008-2010 Honda Odyssey. Part number 11391 is also referenced by OE and aftermarket numbers including 06311-RGW-505 and 31100-RGW-A01.

What This Alternator Helps Address

• Battery warning light caused by charging-system failure
• Low-voltage conditions during driving or idle
• Dim headlights or inconsistent electrical performance
• Hard starting related to insufficient alternator output
• Accessory operation issues tied to weak charging output

Installation Notes and Tips

Verify pulley groove count, rotation, clock position, and electrical connector style before installation. Confirm the vehicle uses a 12-volt system and the specified Nippondenso alternator configuration. Always inspect the belt, battery condition, and charging circuit before replacing the alternator to avoid repeat failures.

Quality Assurance

MPA Electrical remanufactured components are rebuilt to meet application-specific fitment and electrical requirements for the listed Acura and Honda models. Confirm part number 11391 against the original unit and vehicle specifications before installation.