MPA Electrical 15615 Alternator

Remanufactured Alternator for BMW Charging Systems

This MPA Electrical remanufactured alternator is built for OE fit, form, and function on select BMW applications. Part number 15615 is a 12-volt, 90-amp alternator with an internal regulator and clockwise rotation, making it a direct replacement for the charging system on compatible BMW 535i, 735i, and 735iL models.

MPA Electrical’s remanufactured product line focuses on OE-style replacement parts that are cleaned, rebuilt, and tested using current remanufacturing and validation methods. For buyers searching for a remanufactured BMW alternator 15615 or a 90 amp Bosch-family replacement alternator, this unit is built to match the original configuration.

Key Features

• 12.0-volt alternator for standard automotive charging systems
• 90.0 amp amperage rating
• Internal regulator for integrated voltage control
• External fan design
• Clockwise (right) rotation direction
• Bosch family design
• No pulley included
• No decoupled or clutch pulley
• Plug clock rear view main mounting ear at 6 o’clock: 7

Detailed Description

Part number 15615 is a remanufactured alternator engineered for BMW charging system replacement where OE-style fitment and electrical output are required. It is configured as a 12-volt unit with a 90-amp rating, internal regulator, external fan, and clockwise rotation. The Bosch-family design and connector orientation support proper installation on the listed BMW 5 Series and 7 Series applications.

Compatible With BMW 535i, BMW 735i, and BMW 735iL applications from 1987 through 1990, this alternator is a practical choice when replacing a worn or failing charging unit on the original vehicle setup. Part number 15615 is also a useful search reference when comparing BMW alternator replacement options for these model years.

This part cross-references BMW OE numbers 12-31-1-713-363 and 12-31-1-735-701 for the same application.

What It Helps Address

• Battery warning light caused by low alternator output
• Weak charging performance during driving
• Electrical system voltage instability
• Starting issues related to insufficient battery recharge
• Alternator noise or failure from a worn charging unit

Installation Notes and Tips

Verify the connector clocking, mounting ear position, rotation direction, and pulley configuration before installation. This alternator is supplied without a pulley, so reuse or source the correct pulley as required by the vehicle application. Confirm the vehicle’s charging system specifications and compare the original unit to part number 15615 before final installation.

• Fits 1988-1990 BMW 535i, N/A
• Fits 1987-1990 BMW 735i, N/A
• Fits 1988-1990 BMW 735iL, N/A

Quality Assurance

MPA Electrical remanufactured alternators are rebuilt to OE fit, form, and function standards and tested with modern remanufacturing and inspection processes to support reliable replacement performance.