MPA Electrical 13974 Alternator

Remanufactured Alternator for BMW M3

This remanufactured MPA Electrical alternator is built for 12-volt charging systems and is listed for 2002-2006 BMW M3 applications. It delivers 120 amps of output with an internal fan and internal regulator for a direct-fit charging system replacement.

MPA Electrical Remanufactured parts focus on restored OE-style function for vehicles that need dependable electrical performance. Part number 13974 is a remanufactured alternator made by Valeo and specified without a pulley, with clockwise rotation and a 2:00 clock position.

• 120 amp output for stable charging performance
• 12 volt alternator for BMW M3 charging systems
• Internal fan and internal regulator
• Clockwise rotation with 2:00 clock position
• Without pulley configuration
• Made by Valeo and remanufactured by MPA Electrical

Detailed Product Information

Part number 13974 is an alternator for the 2002-2006 BMW M3, engineered around the listed Valeo design and electrical specifications. The unit uses an internal regulator and internal cooling fan, which keeps the alternator configuration aligned with the original charging system layout. For shoppers searching for a remanufactured BMW M3 alternator, 13974 provides the key fitment and electrical details needed to match the vehicle application.

This part cross-references Dorman - HELP 13974 for the same application.

Common Charging System Issues

• Battery warning light caused by alternator output loss
• Low-voltage charging that can affect starting and electrical accessories
• Intermittent charging performance from a worn internal regulator
• Noise or charging instability related to alternator wear
• Replacement need for a BMW M3 alternator with the correct Valeo-style configuration

Installation Notes and Tips

Verify the vehicle’s alternator mounting style, pulley setup, rotation, and clock position before installation. This unit is listed without a pulley, so the existing application details should be matched carefully to the original part. Confirm electrical connections and belt alignment during replacement on 2002-2006 BMW M3 models.

Quality Assurance

MPA Electrical remanufactured components are restored to meet the listed application requirements for fit and function. Part number 13974 is identified with Valeo interchange references, supporting accurate selection for BMW M3 charging system service.