BMW 1 3 5 7 Series E60 E61 E65 E87 E90 E91 Petrol N52 Head Rocker Cylinder Cover

BMW 1 3 5 7 Series E60 E61 E65 E87 E90 E91 Petrol N52 Head Rocker Cylinder Cover is an original component from the Tappet and valve covers group, designed for BMW petrol engines. This used cover ensures a factory-fit to the cylinder head, a stable seal for the valve chamber, and maintains the original operating parameters of the engine unit.

Specifications and technical data

• SKU: 7548274
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7548274
• Substitutable numbers: 11127548274, 7548274, 11127531713, 7531713, 7548275
• Fuel type: Petrol
• Category: Rocker & Valve Covers

Purpose and function of the valve cover

The cylinder head valve cover in BMW E60, E61, E65, E87, and E90 series models is responsible for tightly sealing the upper part of the engine, protecting the timing mechanism and tappets, and controlling oil circulation in the upper section of the unit. In a petrol engine, its correct fit is crucial for maintaining proper oil pressure, reducing leaks, and ensuring stable operation of the lubrication system.

The original design of the cover ensures compatibility with the factory mounting system, oil channels, and sealing points specified by the manufacturer. As a result, this component can be used both for a standard replacement of a worn cover and for more extensive maintenance of the upper engine area.

Benefits of using an original BMW cover

Using an original cylinder head valve cover in a BMW petrol engine provides a number of practical service and operational benefits:

• factory fit to the cylinder head and mounting system without the need for modifications,
• preservation of the manufacturer-specified geometry of oil channels and the working space above the timing gear,
• reduced risk of leaks in the area of the cover gasket and ventilation system,
• consistency with other components from the Tappet and valve covers group in the given engine.

For the user, this means more predictable installation, easier diagnosis of potential leaks, and maintaining the engine's operating parameters at a level close to factory standards. The used OEM component is also an economical solution, allowing for reduced service costs while maintaining the original design specifications.

Selection and compatibility in petrol engines

The cover has been designed to work with BMW petrol engines used in E60, E61, E65, E87, and E90 platforms. When selecting the part, it is crucial to match it to the specific engine version and ensure compatibility with the OEM part number and interchangeable numbers, which are listed in the product's technical specification.

In practice, this means that before installation, it is worth verifying:

• compatibility of the body generation and petrol engine type,
• suitability of the used cover for the existing cylinder head and accessory system,
• consistency with other components from the Tappet and valve covers group in the given engine.

This approach minimizes the risk of installation problems and allows for the full potential of the original BMW design to be utilized, which translates into stable engine operation and easier future service maintenance.

Condition, installation, and service application

The item is offered as a used part, which in practice represents a reasonable compromise between cost and maintaining the manufacturer's original specifications. The cover can be used both for a standard replacement of a worn component and for larger works within the cylinder head, such as timing gear maintenance or sealing the upper part of the engine.

Thanks to the factory design, installation is based on standard mounting points and sealing solutions provided by the manufacturer. For workshops and users, this means predictable working time, no need for adaptation, and the ability to maintain consistency with BMW service documentation, which is particularly important when servicing modern petrol units.

Expanding engine area maintenance and technical knowledge

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 additional covers, shields, or valve mechanism protection elements, check out the available parts in the BMW Tappet and valve covers category.

For a better understanding of how modern combustion units work and how various components in the fuel and exhaust gas treatment systems interact, it is worth reading an article describing the exhaust gas recirculation system and the selection of used components: EGR: what it is and why it is worth considering used EGR valves.