Description

MPA 13970 – Alternator

Manufacturer Part Number: 13970

Product Overview

The MPA 13970 Alternator is a high-performance automotive component designed to efficiently charge the vehicle’s battery while powering electrical systems. With OE-level quality and reliability, this alternator ensures a perfect fit for select BMW models, reflecting MPA’s commitment to delivering trusted, high-quality parts to the European automotive community.

Cross Reference Numbers

12-31-7-510-599, 12317510599, 19134487, SG12B029, 13970

Vehicle Compatibility

• BMW 325Ci Base (2.5 L6 GAS) (2001-2006)
• BMW 325i Base (2.5 L6 GAS) (2001-2004)
• BMW 325xi Base (2.5 L6 GAS) (2001-2003)
• BMW 330Ci Base (3.0 L6 GAS) (2001-2006)
• BMW 330i Base (3.0 L6 GAS) (2001-2005)
• BMW 330xi Base (3.0 L6 GAS) (2001-2005)
• BMW 525i Base (2.5 L6 GAS) (2001-2003)
• BMW 530i Base (3.0 L6 GAS) (2001-2003)
• BMW X5 3.0i (3.0 L6 GAS) (2001-2006)

This also fits other applications. Please use the vehicle selector tool to verify fitment.

Why Shop at our website?

• Over 25 years of European auto parts expertise
• Accurate cataloging for fitment confidence
• Fast, reliable U.S. shipping
• Competitive prices with no hidden fees
• Trusted supplier to the European car community since 2000

Frequently Asked Questions

What are the signs of a failing alternator?

Common symptoms include dimming lights, electrical failures, a dead battery, and unusual noises from the alternator.

How can I test if my alternator is working properly?

You can check the voltage output with a multimeter; it should typically read between 13.8 to 14.5 volts when the engine is running.

What should I do if my car won’t start but the battery is fine?

If the battery is charged and the car still won’t start, the alternator might not be charging the battery properly, or there could be an issue with the starter or ignition system.

Can a faulty alternator cause DTC codes?

Yes, a failing alternator can trigger diagnostic trouble codes (DTCs) related to battery voltage, such as P0562 (System Voltage Low) or P0620 (Generator Control Circuit Malfunction).

Specification

• • eEuroparts SKU : 3734706
  • Weight : 14.79 lbs
  • Dimensions (L x W x H) : 9 x 9 x 9 in
  • Barcode : 00029175635909
  • Manufacturer Part # : 13970
• Brand : MPA
• Manufacturer : MPA
• MPN : 13970
• Part Type : Alternator
• OE Part Numbers : 12-31-7-510-599, 12317510599
• Cross Reference Numbers : 19134487, SG12B029, 13970
• Features : Amps : 120 Amps
  Clock : 3:00
  Fan : Internal
  Manufacturer : Valeo
  Pulley : Without Pulley
  Regulator : Internal
  Rotation : Clockwise
  Volts : 12 Volts

• Fitment
  • Fitment Type : Vehicle Specific