BBB Industries 13970 Alternator

Reliable Alternator Replacement for BMW Vehicles

The BBB Industries REMAN ALTERNATOR part number 13970 is designed to provide consistent electrical charging performance for select BMW models. Engineered to meet OE specifications, this alternator ensures dependable power delivery for your vehicle's electrical system.

• 120 Ampere output for stable electrical supply
• Internal fan cooling method for efficient heat dissipation
• Conventional pulley with 6 grooves and 2-inch diameter
• Compatible with serpentine belt systems
• Negative polarity and clockwise rotation direction
• Internal voltage regulator for simplified installation
• OE Manufacturer: Valeo

About the REMAN ALTERNATOR Product Line

The REMAN ALTERNATOR line from BBB Industries offers remanufactured alternators that meet strict quality and performance standards. This product line focuses on restoring alternators to original equipment specifications, providing a cost-effective alternative to new units without compromising reliability. Part number 13970 is part of this line, ensuring it has undergone thorough testing and refurbishment to suit BMW applications.

Technical Details and Compatibility

This alternator features a 120 ampere rating suitable for BMW models including the 320i, 325Ci, 325i, 325xi, 330Ci, 330i, 330xi, 525i, 530i, and X5. It uses an air cooling method with an internal fan to maintain optimal operating temperatures. The pulley is conventional type with six grooves, measuring 2 inches (50 mm) in diameter, designed for serpentine belt systems. The unit operates with negative polarity and rotates clockwise, matching the original equipment specifications. Additionally, it includes an internal voltage regulator and is not brushless, which aligns with the OE design by Valeo.

Common Issues Addressed by This Alternator

• Intermittent or complete loss of electrical charging
• Battery warning light illumination on dashboard
• Dim or flickering headlights and interior lights
• Electrical system failures affecting vehicle performance
• Unusual noises from the alternator pulley or bearings

Installation Notes and Tips

When installing the BBB Industries REMAN ALTERNATOR 13970, ensure the serpentine belt is properly aligned with the 6-groove pulley. Verify the clockwise rotation direction and negative polarity match your BMW model’s specifications. The internal voltage regulator simplifies wiring, but confirm plug clock position (position 2) for correct electrical connections. It is recommended to inspect the battery and charging system components during installation to ensure optimal performance.

Quality Assurance and Warranty

BBB Industries remanufactured alternators undergo comprehensive testing to meet or exceed OE standards. Part number 13970 is built with quality components, including an OE Valeo base, to ensure durability and reliable operation. Warranty coverage details should be confirmed with the distributor or retailer, as BBB Industries typically offers limited warranties on remanufactured electrical components.