Audi A4 B8 S4 B8 S5 8T Cylinder Head 1-3 06E103903JX 06E103404K 06E103286

Audi A4 B8 S4 B8 S5 8T Engine Cylinder Head 1-3 is an original part from the Cylinder Heads category, designed for the right side of the engine in select Audi models. This solution is for users seeking a factory fit, maintaining original engine performance parameters, and a solid foundation for professional repair or overhaul.

Specifications and technical data

• SKU: 06E103903JX
• Mark: Audi
• Condition: Used
• OEM Part Number: 06E103903JX
• Substitutable numbers: 06E103903JX, 06E 103 903 JX, 06E103404K, 06E 103 404 K, 06E103285, 06E 103 285
• Location on the vehicle: Right
• Part type: Cylinder Head
• Category: Cylinder Heads

Intended Use and Function in the Engine System

The presented cylinder head is designed for operation in cylinders 1–3 on the right side of the engine, which is important when planning repairs for V-engines used in Audi A4 B8, S4 B8, and S5 8T models. It is responsible for the correct routing of intake and exhaust ports, sealing the combustion chamber, and stable mounting of valves and associated components.

Thanks to its design conforming to factory solutions, the cylinder head allows for the preservation of original engine performance characteristics, which is crucial for both daily driving and a more dynamic driving style. This is particularly important for S4 and S5 versions, where the engine operates under higher loads.

Benefits of Using an Original Audi Cylinder Head

Using an original Audi Group cylinder head ensures:

• factory fit to the engine block and components,
• maintenance of original mixture and exhaust gas flow parameters,
• utilization of existing mounting points and oil/cooling channels,
• consistency with factory service documentation and assembly procedures.

For workshops and private users, this means predictable installation, no need for adaptations, and easier future diagnostics. The original cylinder head design also contributes to maintaining stable compression and even operation of individual cylinders.

Vehicle Placement and Installation Aspects

The cylinder head is designed for installation on the right side of the engine, which is crucial when selecting parts for V-engines. Correctly identifying the installation side minimizes the risk of incompatibility with port layout, camshaft routing, and component placement.

When planning installation, it is recommended to use new sealing elements and adhere to torque specifications according to Audi service documentation. This allows for a durable connection with the engine block and reduces the risk of leaks in the long run.

Product Characteristics and Practical Application

The presented cylinder head is from the Audi brand and is a part from the Cylinder Heads category, making it a suitable choice for engine overhauls in A4 B8, S4 B8, and S5 8T models. It is ideal for replacing a damaged part after a failure or for a planned engine rebuild in intensively used vehicles.

The product in used condition offers a reasonable compromise between repair cost and maintaining original technical specifications. For many users and workshops, this is a way to restore engine functionality while preserving high-quality components.

Part Number Selection and Compatibility

The cylinder head has an assigned OEM part number and associated interchangeable numbers, which facilitates precise identification in Audi catalogs and service systems. Before purchasing, it is advisable to compare the markings with your vehicle's documentation or the numbers on the currently installed cylinder head to confirm full compatibility.

Additionally, verifying data such as SKU and placement on vehicle can be helpful, preventing ordering errors and speeding up the repair process in the workshop.

If you are planning a comprehensive repair or upgrade of the engine area in your Audi and need other parts from the same group, such as other cylinder heads, covers, or mounting components, check the available parts in the Audi Cylinder Heads category.

For those interested in the broader context of VW Group car modifications, it is worth reading the article describing the evolution of sports compacts and the scope of typical modifications – you can find it here: The Legend of Hot-Hatch: Evolution of the VW Golf GTI from Mk1 to Mk8 – Structural Changes and VW Car Parts.