BMW E60 E61 E65 E87 E90 E91 Petrol N52 Head Rocker Cylinder Cover 7548274

BMW 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 N52 petrol engines in selected BMW 5, 7, 1, and 3 series models. The used cover ensures a factory-fit to the cylinder head, a stable seal for the valve chamber, and the correct operation of the timing system in petrol-powered units.

Specifications and technical data

• SKU: 7548274-1
• 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 compatibility

The cylinder head rocker cover has been designed for N52 petrol engines used in popular BMW E60, E61, E65, E87, E90, and E91 series models. This ensures the maintenance of factory geometry, proper ventilation routing, and compatibility with the accessories mounted on the cylinder head in these power units.

Thanks to its OEM design, the cover works with original mounts, bolts, and associated components, which facilitates installation and reduces the risk of leaks in the cylinder head area.

Function in the petrol engine system

As an element from the Tappet and valve covers group, the cover is responsible for:

• tightly closing the valve chamber above the petrol engine cylinder head,
• protecting tappets, valves, and timing components from external contaminants,
• maintaining proper oil circulation in the upper part of the engine,
• stable mounting of accessories provided by the manufacturer in this area.

A properly selected valve cover helps reduce oil leaks, thereby lowering the risk of contaminating the engine bay and surrounding electrical components.

Characteristics of the used OEM component

The offered cylinder head rocker cover is a used part, which in practice means maintaining the original manufacturer's specifications while offering an attractive price compared to a new component. Factory origin translates into appropriate body rigidity, correct placement of mounting points, and compatibility with the lubrication and crankcase ventilation system in the petrol engine.

Choosing a used OEM component is particularly beneficial for maintenance repairs when the priority is to preserve the original engine design and avoid fitment issues typical of aftermarket replacements with uncertain specifications.

Installation and maintenance tips

When replacing the cylinder head rocker cover in an N52 petrol engine, it is worth paying attention to:

• thoroughly cleaning the mating surface on the cylinder head before installation,
• applying the correct bolt tightening torques in accordance with BMW service documentation,
• verifying the condition of associated components in the cover area,
• checking for leaks after the first engine operating cycles.

This approach allows you to fully utilize the potential of the original cover and reduce the risk of needing to re-intervene in the cylinder head area.

System expansion within the BMW cylinder head

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

For users interested in a broader context regarding the selection of original used parts and their impact on engine durability, an article describing the specifics of iconic engines and the principles of selecting components by identification numbers may be helpful – more information can be found in the material about the Audi five-cylinder engine and selecting used OEM parts.