MPA Electrical 13970 Alternator

Reliable Alternator for BMW 3 Series and X5 Models

The MPA Electrical Remanufactured Alternator 13970 is designed to provide consistent 12-volt electrical output for various BMW vehicles. Engineered with a 120-amp capacity, this alternator supports the charging and starting systems of BMW 320i, 325Ci, 325i, 325xi, 330Ci, 330i, 330xi, 525i, 530i, and X5 models.

• 120 amps output for efficient electrical performance
• Internal fan for optimized cooling
• 6 groove serpentine pulley compatible with BMW belt systems
• Internal voltage regulator for stable voltage control
• Clockwise rotation matching OEM specifications
• 12 volts system compatibility
• Manufactured by Valeo, a trusted OEM supplier

About the MPA Electrical Remanufactured Product Line

The Remanufactured line from MPA Electrical offers alternators rebuilt to meet original equipment standards. This process includes thorough inspection, replacement of worn components, and testing to ensure reliable performance. The 13970 alternator benefits from this remanufacturing process, providing a cost-effective alternative to new units while maintaining quality and fitment for BMW vehicles.

Technical Details and Compatibility

This alternator features an internal fan that helps maintain optimal operating temperatures during vehicle use. The 6 groove serpentine pulley is designed to fit BMW’s belt systems precisely, ensuring smooth power transfer. The internal voltage regulator maintains consistent 12-volt output, protecting your vehicle’s electrical components. Clockwise rotation aligns with the original alternator’s design, making installation straightforward. Compatible with BMW 320i, 325Ci, 325i, 325xi, 330Ci, 330i, 330xi, 525i, 530i, and X5 models, this alternator supports a range of engine configurations.

Common Issues Addressed by This Alternator

• Battery not charging or slow charging
• Dim or flickering dashboard lights
• Electrical system warning lights on the dashboard
• Unusual noises from the engine bay related to the alternator
• Vehicle stalling or difficulty starting due to electrical failure

Installation Notes and Tips

Before installation, verify the part number 13970 matches your vehicle’s requirements. Disconnect the battery to prevent electrical shorts. Ensure the serpentine belt is in good condition and properly tensioned when reinstalling. Follow torque specifications for mounting bolts and reconnect all electrical connectors securely. Testing the alternator output after installation is recommended to confirm proper function.

Quality Assurance and Warranty

The MPA Electrical Remanufactured Alternator 13970 undergoes comprehensive testing to meet performance standards. Manufactured by Valeo, it adheres to OEM quality benchmarks. This alternator typically includes a limited warranty covering defects in materials and workmanship, providing confidence in its durability and reliability for BMW 3 Series and X5 vehicles.