Mercedes W204 C207 W212 OM642 Diesel Cover Engine Cylinder Head Trim A6420105867

Visual condition of the part

The product shows signs of use visible in the photos.

Mercedes W204 C207 W212 OM642 Diesel Cover Engine Cylinder Head Trim is a factory-original component designed for OM642 diesel units used in popular Mercedes C-Class, E-Class, and coupe models. This used engine cover provides an aesthetic finish to the engine bay while helping to protect components from dirt and external factors. By maintaining the original mounting geometry, it serves as a practical service solution when replacing a damaged or missing cover.

Specifications and technical data

• SKU: A6420105867-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6420105867
• Substitutable numbers: A6420105867, A 642 010 58 67
• Fuel type: Diesel
• Category: Cylinder Heads

Purpose and function of the engine cover

The engine cover dedicated to the OM642 diesel unit performs several important operational functions. It limits the ingress of dust and moisture onto the top of the engine, makes it easier to keep the engine bay clean, and organizes the routing of wires and auxiliary components. Additionally, it visually stabilizes the space under the hood, which is important both for daily use and during service inspections.

Compatibility with the OM642 unit

The presented cover is designed for the specific layout of manifolds, lines, and accessories characteristic of the OM642 engine in Mercedes W204, C207, and W212 models. This means that the shape, placement of mounting points, and contours are matched to the architecture of this unit, which translates into a secure fit without the need for modifications. For the user, this means consistency with the factory design and maintaining the original appearance of the engine bay.

Benefits of using an original cover

Using an original engine cover in Mercedes diesel vehicles provides a number of practical benefits:

• better protection of the top of the power unit against operational dirt,
• organized routing of wires and auxiliary components,
• maintaining a consistent, factory look of the engine bay,
• easier identification of the power unit during service work.

For workshops and private users, this means more convenient service handling and a more professional vehicle presentation after repairs or component replacements within the engine area.

Characteristics of the used product

The cover comes from the Cylinder Heads category and is a used item, which in practice allows for an economical replacement of a damaged or missing cover while maintaining the original origin of the part. This type of solution is particularly beneficial for post-accident repairs, filling gaps after previous modifications, or restoring the vehicle to a condition close to factory specifications.

Support in selection and additional information

When selecting a cover for a specific Mercedes diesel vehicle, it is worth paying attention to the power unit designation and accessory configuration to ensure full mounting compatibility. In case of doubt, it may be helpful to compare the shape and mounting points with the currently installed element or consult a mechanic specializing in the Mercedes brand.

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

For a better understanding of the operation of diesel units and related fuel supply components, an article describing the diagnostics and operation of the fuel system may be helpful – you can find it here: Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.