Audi S3 8Y VW Golf Mk8 R GTI Alternator Generator 2.0 TFSI 14V 140A 06K903026L

Audi S3 8Y VW Golf Mk8 R GTI Alternator Generator 2.0 TFSI 14V 140A is an original component from the Alternators and generators group, designed for modern 2.0 TFSI petrol engines. This used OEM alternator ensures proper charging of the electrical system, stable operation of engine accessories, and correct integration with the vehicle's advanced electronics.

Specifications and technical data

• SKU: 06K903026L-1
• Mark: Audi
• Condition: Used
• OEM Part Number: 06K903026L
• Substitutable numbers: 06K903026L, 06K 903 026 L
• Fuel type: Petrol
• Part type: Alternator
• Category: Alternators & Generators

Purpose and compatibility

The presented generator is designed for use in sports models from the Audi and VW families, such as the Audi S3 8Y generation and the VW Golf Mk8 in R and GTI versions with the 2.0 TFSI petrol engine. The alternator's construction is adapted to the high electrical loads typical of modern ignition systems, safety systems, and extensive onboard electronics.

Thanks to its factory origin from the Audi brand, the alternator maintains full compatibility with factory wiring, mounts, and engine operating parameters, which facilitates installation and reduces the risk of compatibility issues.

Operating parameters and function in the electrical system

The 140A capacity alternator is adapted to support the extensive electrical systems of premium segment vehicles with petrol engines. It ensures:

• stable battery charging under variable electrical loads,
• adequate power reserve for comfort and safety systems,
• proper cooperation with engine control units and driver assistance systems.

Selecting an alternator with the appropriate current capacity is crucial for battery longevity, correct operation of control units, and avoiding voltage drops under high system loads.

Application in TFSI petrol engines

The alternator has been configured to work in engines powered by petrol, which means the charging characteristics are adapted to the specifics of TFSI units. In practice, this translates into:

• proper cooperation with the energy management system in 2.0 TFSI engines,
• appropriate voltage parameters across the full RPM range,
• maintaining operational stability during dynamic driving and frequent load changes.

As a result, this alternator is the right choice when replacing a factory generator in vehicles with a sporty character, where both reliability and predictable electrical system behavior are essential.

Characteristics of the used product

The offered alternator is a used component, which allows for an economical repair of the charging system while maintaining the manufacturer's original specifications. Choosing parts from dismantling is a solution often preferred by users who want to keep their vehicle in an OEM configuration, avoiding the risks associated with cheap replacements of uncertain quality.

Before installation, it is recommended to perform a standard verification of the vehicle's electrical system (condition of ground wires, battery terminals, accessory belt) to fully utilize the alternator's potential and minimize the risk of recurring faults.

Support with selection and additional information

In case of doubts regarding the fitment of the alternator to a specific engine version or vehicle model year, it is worth verifying the markings in the technical specification and comparing the design of the mounts and connectors with the currently installed component. Proper component selection has a direct impact on the durability of the charging system and correct cooperation with the vehicle's electronics.

If you are planning a comprehensive repair or upgrade of the engine area in your Audi and need other items from the same group, such as alternators, generators, or related mounting elements, check the available parts in the Audi alternators and generators category.

For additional information on the benefits of using dismantled parts in the context of repair economy and quality preservation, you can look for the article on replacing body parts with used car parts, which discusses practical aspects of selecting used components for popular brands, including Audi and VW.