BBB Industries 13815 Alternator

BBB Industries 13815 Reman Alternator Overview

BBB Industries 13815 is a remanufactured 12-volt alternator built for 150-amp charging applications. It uses an internal voltage regulator, clockwise rotation, a serpentine belt pulley, and a water-cooled design for vehicles that require liquid-cooled charging system operation.

This REMAN ALTERNATOR line from BBB Industries focuses on OE-style replacement coverage for import and luxury applications. Part number 13815 is listed for BMW X5, BMW 540i, BMW 740i, BMW 740iL, BMW 750iL, and Land Rover Range Rover models with the matching 150-amp alternator setup.

Key Features

• 150-amp amperage rating for factory-style charging output
• 12-volt alternator with internal voltage regulator
• Water-cooled, liquid-cooled fan design
• Brushless design for reduced wear points
• Serpentine belt pulley with 7 grooves included
• Conventional pulley type, 49 mm outside diameter
• Negative polarity and clockwise rotation
• OE manufacturer reference: Bosch

Detailed Description

BBB Industries 13815 reman alternator is engineered for direct replacement in vehicles using a Bosch OE charging system. The unit is specified with a brushless construction, internal regulation, and a liquid-cooled housing to match the electrical and thermal demands of the original application. The included pulley and 7-groove serpentine belt interface support proper belt tracking in the factory charging system.

Fits 2003-2005 Land Rover Range Rover, N/A. Fits 2000-2004 BMW X5, N/A. Fits 1999-2003 BMW 540i, N/A. Fits 1999-2001 BMW 740i, N/A. Fits 1999-2001 BMW 740iL, N/A. Fits 1999-2000 BMW 750iL, N/A. This part cross-references Bosch and BMW OE numbers such as 0-122-0AA-1J0 and 0-122-468-015 for the same application.

Common Problems This Part Can Solve

• Low battery charging caused by a worn alternator
• Battery warning light triggered by charging system failure
• Dim lights or unstable electrical output at idle
• Noise or belt drive issues from a failing alternator pulley assembly
• Charging loss in water-cooled OE alternator applications

Installation Notes and Tips

Verify the vehicle’s original alternator specifications before installation, including amperage rating, pulley groove count, rotation direction, and cooling style. This unit uses an internal regulator and a serpentine pulley setup, so connector and belt alignment should be checked against the original part. Confirm the application is a 150-amp alternator system for BMW X5, BMW 540i, BMW 740i, BMW 740iL, BMW 750iL, or Land Rover Range Rover before replacement.

Quality Assurance

BBB Industries remanufactures this alternator to meet OE-style replacement requirements for the listed applications. The Bosch OE reference and application-specific fitment support accurate selection for BMW and Land Rover charging system repairs.