Valeo 439791 Alternator

Valeo 439791 Alternator Overview

The Valeo 439791 alternator is a 12-volt charging system component built for select Audi A3 and Volkswagen Golf applications. As part of the Valeo OE family, this alternator uses an internal fan, clockwise rotation, a 6-groove pulley, and an aluminum housing to match the electrical and mounting requirements of the original vehicle setup.

Valeo has supplied original equipment alternators for decades, and this 140-amp unit reflects that OE-focused design approach. If you need a Valeo alternator 439791 for a 2015-2016 Audi A3 or a 2015 Volkswagen Golf, this part number is built for direct replacement use in the listed applications.

Key Features

• 12-volt alternator with a 140-amp output rating
• Internal fan design for integrated cooling
• Clockwise rotation direction
• 6-groove pulley configuration
• Aluminum housing for OE-style fit and durability
• Valeo OE family component with technical number TG14C043

Detailed Product Information

Valeo alternator 439791 is engineered for charging-system performance in vehicles that require a 140-amp OE-style replacement. It is listed for 2015-2016 Audi A3 and 2015 Volkswagen Golf, including 2015 Volkswagen Golf SportWagen, and it matches the original supplier specification noted for these applications. The design supports stable electrical output for vehicle systems that depend on consistent charging performance.

This part cross-references BBB Industries 11215 for the same application. The part number 439791 is also associated with interchange references 03L903023L and TG14C043.

What This Alternator Helps Address

• Battery warning lights caused by charging-system failure
• Low or unstable system voltage
• Dim lights or electrical accessories operating inconsistently
• Battery discharge from a weak alternator output
• Charging issues on Audi A3 and Volkswagen Golf applications

Installation Notes and Fitment

Fits 2015-2016 Audi A3, N/A. Fits 2015 Volkswagen Golf, N/A. Fits 2015 Volkswagen Golf SportWagen, N/A. Confirm pulley groove count, rotation direction, amperage rating, and connector alignment against the original unit before installation. Verify the vehicle’s charging-system condition, belt condition, and battery health during replacement to help ensure proper operation.

Quality Assurance

Valeo is a long-standing OE supplier in electrical systems, and this alternator is part of the Valeo OE line. The 100% new construction helps avoid the risks associated with remanufactured units and supports a clean replacement for the listed Audi and Volkswagen applications.