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.