Audi RS4 B8 Engine Cover Plastic Trim Panel 4.2 FSI CFSA 8K0103926

Audi RS4 B8 Engine Cover Plastic Trim Panel 4.2 FSI CFSA is an original component from the Tappet and valve covers group, designed specifically for the 4.2 FSI CFSA engine unit in the RS4 B8 model. It is responsible for the organized routing of the upper engine area, improving component protection, and providing an aesthetic finish to the engine bay in Audi vehicles.

Specifications and technical data

• SKU: 8K0103926
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0103926
• Substitutable numbers: 8K0103926, 8K0 103 926, 8T0103926B, 8T0 103 926 B
• Part type: Valve Cover
• Category: Rocker & Valve Covers

Purpose and technical function

The engine cover in the RS4 B8 performs several important structural tasks. It protects the upper part of the power unit from contaminants in the engine bay, stabilizes the routing of auxiliary components, and limits the direct impact of external factors on critical cylinder head areas. As a result, the 4.2 FSI CFSA engine operates under more controlled conditions, and servicing the upper part of the unit is organized and predictable.

The component from this group is particularly important in high-performance cars like the RS4 B8, where operating temperatures and the density of auxiliary equipment are higher than in standard versions. A properly selected cover helps maintain system integrity while facilitating service access to specific components.

Original origin and fitment

The presented cover is a part prepared by Audi, which means factory-level fitment for the specific engine and body variant. The original mounts, shape, and geometry allow for installation at the manufacturer-designated points without the need for modifications or fitting aftermarket replacements. Such a solution minimizes the risk of improper cover alignment and potential vibrations or noise during engine operation.

Choosing an original cover from the Tappet and valve covers group is particularly important for sports-oriented cars, where the precision of component fitment has a direct impact on user comfort and engine stability across the full RPM range.

Condition, application, and benefits of installation

The item is offered as a used part, which in practice represents a favorable compromise between cost and maintaining the manufacturer's original specifications. For RS4 B8 owners, this is a solution that allows for restoring the complete look of the engine bay after damage or loss of the factory cover, without the need to resort to unreliable replacements.

The main benefits of installation include:

• restoring the factory layout and protection of the upper engine area,
• maintaining the consistent engine bay aesthetics characteristic of the RS version,
• limiting the ingress of contaminants into the cylinder head and auxiliary area,
• maintaining compliance with factory Audi solutions, which is important for future service work.

Selection support and additional information

When selecting a cover for the RS4 B8, it is crucial to verify compatibility with the specific engine version and vehicle model year. In case of doubt, it is worth using the engine code and comparing the shape and mounting points with the currently installed component. A properly selected cover will ensure stable seating and correct interaction with other components in the engine bay.

If you are planning a comprehensive repair or upgrade of the engine area in your Audi and need other elements from the same group, such as additional covers, shields, or masking elements, check the available parts in the Audi Tappet and valve covers category.

For drivers interested in a broader approach to vehicle component maintenance, including assessing the cost-effectiveness of using used parts, our guide material may be helpful – you can find more practical tips in the article Air conditioning compressor – failure symptoms, causes, and safe replacement.