BMW 3 5 X3 E46 E60 E83 2.0d 320d 520d M47N2 Engine Cylinder Head Cover 7799223

BMW 3 5 X3 E46 E60 E83 2.0d 320d 520d M47N2 Engine Cylinder Head Cover is an original BMW engine cylinder head cover, belonging to the Tappet and valve covers group, designed for M47N2 diesel units in popular 3, 5, and X3 series models. This component is responsible for tightly covering the upper part of the engine, protecting the valve mechanism, and properly routing oil vapors, which directly impacts the engine's operating performance.

Specifications and technical data

• SKU: 7799223
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7799223
• Substitutable numbers: 11127799223, 7799223, 11127793446, 7793446, 11127789660, 7789660, 11127787073, 7787073, KZ
• Category: Rocker & Valve Covers

Purpose and technical function

The cylinder head cover in the M47N2 engine plays a key role in sealing the upper part of the power unit and protecting components such as tappets and valves from external contaminants. A properly selected, original cover ensures:

• stable maintenance of the lubrication system seal in the upper part of the engine,
• protection of the valve mechanism against dust and moisture,
• proper routing of oil vapors in accordance with BMW design specifications,
• reduction of noise from the timing and valve train operation.

Thanks to its fitment for the specific M47N2 engine generation, the cover works seamlessly with the factory crankcase ventilation system and other engine accessories, which helps maintain stable operating parameters.

Compatibility with BMW models

The presented cylinder head cover was designed for the 2.0d M47N2 diesel engine used in popular BMW models, such as the 3 Series E46 (320d), 5 Series E60 (520d), and X3 E83. This means that the geometry, mounting points, and channel layout correspond to the factory solutions used by the manufacturer, which facilitates installation and reduces the risk of leaks.

Selecting an original cover from the Tappet and valve covers group is particularly important when repairing M47N2 units, where precise fitment with the cylinder head and gasket affects the durability of the entire system.

Characteristics of the original BMW part

As a BMW brand component, the cylinder head cover has been manufactured according to the manufacturer's factory standards, which translates into:

• preservation of the original rigidity and shape of the body,
• correct placement of mounting points and guides,
• compatibility with factory gaskets and mounting bolts,
• consistency with the factory crankcase ventilation system.

A used, original cylinder head cover is a solution often chosen for M47N2 engine maintenance when the goal is to preserve the factory design and avoid problems typical of cheap replacements, such as deformation or leaks after a short period of use.

Condition, installation, and service application

The item comes from dismantling and is intended for reinstallation in an M47N2 engine after standard workshop preparation (cleaning, inspection of the contact surface, use of a new gasket in accordance with the service procedure). Thanks to the preservation of the original geometry, installation is predictable for the mechanic, without the need for modifications or adjustments.

This type of cylinder head cover is particularly useful for:

• repairs following oil leaks from the upper part of the engine,
• servicing the crankcase ventilation system and components located within the cover,
• refurbishing M47N2 units in vehicles used intensively,
• restoring the factory configuration after previous use of unverified replacements.

Support with selection and additional information

The offered cylinder head cover is marked as a BMW brand product, which facilitates verification of compatibility with a specific engine version and vehicle year. In case of doubt during selection, it is worth comparing the shape and layout of the mounts with the currently installed component or consulting a mechanic specializing in M47N2 units.

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

For drivers interested in a broader approach to the quality of used parts, including lighting, a useful article describing the differences between original components and cheap replacements may be helpful – more information can be found in the material on selecting original and used car headlights.