MPA Electrical 15509 Alternator

Remanufactured 140 Amp Alternator for BMW Charging Systems

MPA Electrical Part Number 15509 is a remanufactured 12-volt alternator built for BMW charging system applications that require a 140 amp unit. It features an internal regulator, external fan, clockwise rotation, and a Bosch manufacturer reference for the correct electrical and mounting configuration.

Key Features

• 140 amps output for BMW electrical charging requirements
• 12-volt alternator with internal regulator
• External fan design for application-specific cooling
• Clockwise rotation with 11:30 clock position
• Without pulley for direct application matching
• Remanufactured by MPA Electrical
• Bosch manufacturer reference

Product Details

This remanufactured alternator is engineered for BMW vehicles that specify a 140 amp charging unit. Part Number 15509 matches the electrical and physical setup used in select BMW 535i, 735i, and 735iL applications, including the correct internal regulator configuration and clockwise rotation. If you are replacing a worn charging unit on a BMW 535i or a BMW 735i / 735iL, this alternator provides the specified output and layout needed for proper system operation.

This part cross-references Global Parts Distributors LLC 13268 for the same application.

Vehicle Fitment

• Fits 1993 BMW 535i, N/A. 140 amp alternator required; remanufactured.
• Fits 1987-1992 BMW 735i, N/A. 140 amp alternator required; remanufactured.
• Fits 1988-1992 BMW 735iL, N/A. 140 amp alternator required; remanufactured.

What It Helps Resolve

• Battery warning light caused by low alternator output
• Charging system voltage drop during driving
• Dim lights or electrical instability from a failing alternator
• Overworked battery due to insufficient charging
• Replacement needs for a BMW 140 amp alternator

Installation Notes and Tips

Confirm the vehicle requires a 140 amp alternator before installation. Verify the 11:30 clock position, clockwise rotation, internal regulator setup, external fan design, and pulley-less configuration against the original unit. Match the Bosch-style application details and BMW fitment listing for 1993 535i, 1987-1992 735i, and 1988-1992 735iL models.

Quality Assurance

MPA Electrical remanufactured components are built to meet application-specific replacement needs for charging and starting systems. Part Number 15509 is cataloged with defined electrical and mounting specifications to support accurate fitment selection.