MPA Electrical 13109 Alternator

Remanufactured Bosch Alternator for Audi 4000

This remanufactured MPA Electrical alternator is built for 1980-1983 Audi 4000 applications with a 55 amp charging output. It uses an internal regulator, external fan, clockwise rotation, and a 3:00 clock position for a direct-fit replacement in the correct charging system configuration.

Key Features

• 55 amp alternator output for 12-volt systems
• Remanufactured unit from MPA Electrical
• Built to Bosch specifications
• Internal regulator design
• External fan configuration
• Without pulley
• Clockwise rotation
• 3:00 clock position

Product Details

MPA Electrical Part Number 13109 is a remanufactured alternator for the Bosch charging system used in select Audi 4000 models. It is specified for 12-volt operation and 55 amp output, making it a direct replacement choice for vehicles that require the same mounting, rotation, and regulator setup. This part number 13109 is also referenced under Bosch 13109 for the same application.

Compatible With 1980-1983 Audi 4000, wo/ AC, w/ 55 amp alt.; Remanufactured. Search terms such as Audi 4000 55 amp alternator, remanufactured Bosch alternator for Audi 4000, and 1980-1983 Audi 4000 charging system replacement align with this application.

Common Problems This Part Can Address

• Low battery charging caused by a worn alternator
• Dim lights or electrical instability from weak charging output
• Charging system warning symptoms tied to alternator failure
• Noise or performance issues from an aging original unit
• Replacement needs for a Bosch-style 55 amp alternator setup

Installation Notes and Tips

Verify the vehicle uses the correct 55 amp alternator configuration, without A/C, before installation. Confirm the pulley arrangement, clock position, regulator type, and rotation match the original unit. Because this alternator is supplied without a pulley, reuse or source the correct pulley for the application as needed.

Quality Assurance

MPA Electrical remanufactured components are rebuilt to meet the requirements of the specified application and charging-system layout. Confirm all electrical connections and belt alignment during installation to support proper alternator operation.