BMW E60 X5 E70 E90 Cylidner Head Gearbox Flywheel Cover Plate 306D5 7794342

BMW E60 X5 E70 E90 Cylidner Head Gearbox Flywheel Cover Plate is an original mounting component designed for units marked as 306D5, used in popular BMW 5 Series E60, X5 E70, and 3 Series E90 models. The precisely fitted cover protects the flywheel and gearbox area from contamination, which promotes stable operation of the drivetrain and facilitates future maintenance.

Specifications and technical data

• SKU: 7794342
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7794342
• Substitutable numbers: 11147794342, 7794342
• Category: Other Car Parts & Accessories

Purpose and function of the flywheel cover

The presented cover is a component of the engine-to-gearbox connection area in BMW cars with the 306D5 engine. Its task is to limit the ingress of dirt, moisture, and small debris into the space around the flywheel and the clutch or torque converter, which helps maintain stable operating conditions for these components. A properly selected cover:

• ensures a tighter seal of the housing between the engine and the gearbox,
• reduces the risk of premature wear of rotating elements in this area,
• facilitates future diagnostics – the mechanic can be sure that no excessive external contaminants are entering the interior.

Compatibility with BMW models

The cover has been designed for use in popular mid-size and premium BMW models, such as the 5 Series E60, SUV X5 E70, and 3 Series E90, equipped with the 306D5 unit. As a result, the user receives a component that is structurally consistent with the manufacturer's factory solutions, which translates into proper fitment with the engine block and gearbox, as well as predictable installation in workshop conditions. Choosing an original cover dedicated to a specific family of BMW engines and bodies reduces the risk of fitment issues, improper sealing, or collisions with other accessory components.

Component characteristics and advantages of use

As a part sourced from dismantling, the BMW gearbox flywheel cover retains its factory geometry and mounting points, which is essential for precise positioning relative to the engine block. This type of part is particularly useful for:

• repairs following mechanical damage in the gearbox area,
• engine or gearbox replacement when the complete housing is missing,
• restoring the factory configuration of covers in cars after previous, incomplete repairs. Using an original cover helps maintain the structural integrity of the drivetrain, which is important for both durability and subsequent service in a professional workshop.

Practical installation tips

Before installation, it is recommended to verify the compatibility of the cover with the specific 306D5 engine and gearbox configuration in your BMW E60, X5 E70, or E90. In workshop practice, it is worth:

• checking the condition of the contact surfaces against the block and gearbox housing,
• assessing the completeness of mounting points and installation holes,
• applying the correct bolt tightening sequence, in accordance with BMW service procedures. Such an approach minimizes the risk of stress within the housing and ensures proper sealing of the flywheel area. If you are planning a comprehensive repair or upgrade of the engine and gearbox area in your BMW and need other components from the same group, such as additional covers, mounts, or housing elements, check the available parts in the Other BMW category.

Technical support and additional materials

When selecting components for the drivetrain, it is worth using reliable sources of knowledge regarding the construction of individual models. Differences in the design of engines, gearboxes, and accessories are well illustrated by the sports versions of other brands – for example, in an article describing the comparison of powertrains and chassis of the RS series to standard Audi models, you will find practical information on the impact of design changes on operation and service. You can read more about this in the material Audi RS vs other models – what is hidden under the hood and chassis?.