Audi A3 8V VW Golf Mk7 Alternator Generator 14V 140A 2.0 TFSI 06J903023A

Audi A3 8V VW Golf Mk7 Alternator Generator 14V 140A 2.0 TFSI is a used, original component from the Alternators and generators category, designed for vehicles with a petrol engine. It provides a stable power supply for the electrical system under loads typical of modern comfort and safety systems, serving as a functional service solution for demanding users.

Specifications and technical data

• SKU: 06J903023A
• Mark: Audi
• Condition: Used
• OEM Part Number: 06J903023A
• Substitutable numbers: 06J903023A, 06J 903 023 A
• Fuel type: Petrol
• Part type: Alternator
• Rim width: 6
• Category: Alternators & Generators

Application and operating parameters

The presented alternator has been designed to work with petrol-powered engines, which guarantees proper matching of the charging characteristics to the specifics of TFSI engines. The rated voltage of 14 V and current output of 140 A allow for efficient powering of electrical consumers, such as the ignition system, control units, lighting, or comfort equipment, while maintaining an appropriate power reserve for the battery.

Thanks to its factory design, the alternator works with the engine's stock accessories, maintaining correct mounting geometry, accessory belt routing, and proper cooling. This service solution reduces the risk of charging problems, voltage drops, or unstable operation of the onboard electronics.

Construction, fitment, and installation

The alternator comes from the Audi production line, which means maintaining the vehicle manufacturer's quality standards regarding materials, windings, bearings, and the rectifier system. The design is prepared for installation in the engine bay of vehicles structurally related to the Audi A3 8V and VW Golf Mk7, while maintaining stock belt routing and factory mounting points.

As a used component, the alternator is an economical solution for users looking for parts with proven geometry and compatibility, while keeping repair costs reasonable. Proper fitment for a specific engine version and electrical equipment should always be verified based on the OEM part number or vehicle data.

Benefits of using this alternator in vehicle service

Using an original alternator in the charging system brings a number of practical benefits:

• maintaining electrical system operating parameters in accordance with the vehicle manufacturer's specifications,
• proper cooperation with factory control units and energy management systems,
• reducing the risk of incorrect battery charging and associated electronic errors,
• dimensional consistency with original engine accessories, which facilitates installation and service.

For workshops and individual users, this means stable operation of the electrical system and a lower risk of service returns resulting from component mismatch.

Condition, verification, and part selection

The offered alternator is a used component, which allows for repair cost optimization while maintaining the original design. Before installation, it is recommended to perform a standard verification of the vehicle's electrical system condition, ground cables, and battery to ensure proper operating conditions for the charging system.

Selecting an alternator for a specific car should be based on the OEM part number and vehicle data, such as model, generation, engine type, and electrical equipment. In case of doubt, it is helpful to compare the alternator's design with the component removed from the vehicle, especially regarding mounts, electrical connectors, and pulley diameter.

If you are planning a comprehensive repair or upgrade of the electrical power supply area in your Audi and need other components from the same group, such as alternators with different outputs, generators for other engine versions, or compatible charging system sub-assemblies, check the available parts in the Audi alternators and generators category.

Additional information on the safe selection and installation of used electrical components in a vehicle, including compatibility verification rules and practical service tips, is provided in the Global Parts guide: Used automotive electronics on board – why is it worth choosing second-hand ECU modules and sensors?.