BMW F10 F11 F20 F21 E90 E91 LCI F30 F32 N55 Cylinder Head Rocker Cover 7570292

BMW F10 F11 F20 F21 E90 E91 LCI F30 F32 N55 Cylinder Head Rocker Cover is an original component from the Tappet and valve covers group, designed for N55 power units in popular BMW 3, 5, and 1 series models. This used cover ensures a factory fit, maintaining the proper seal of the valve chamber and stable operating conditions for the timing system.

Specifications and technical data

• SKU: 7570292
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7570292
• Substitutable numbers: 7570292, 11127570292
• Category: Rocker & Valve Covers

Purpose and function of the cylinder head rocker cover

The cylinder head rocker cover in the N55 engine plays a key role in isolating the timing system from external factors and maintaining proper oil circulation in the upper part of the power unit. In BMW F10, F11, F20, F21, E90, E91 LCI, F30, and F32 models, it is responsible for:

• sealing the valve chamber and reducing oil leaks,
• protecting tappets and valves from contamination,
• ensuring stable timing system operation under variable loads,
• maintaining proper thermal conditions in the upper part of the engine.

Thanks to its factory design, the cover works with stock accessories, which facilitates installation and subsequent maintenance.

Application in BMW models with the N55 engine

The presented cover is intended for the N55 unit used in many popular BMW models, such as the 5 series F10/F11, 1 series F20/F21, and 3 series E90/E91 LCI, F30, and F32. This means that with proper selection for the specific engine version, you can maintain:

• original geometry of mounts and bolt points,
• proper routing of cables and accessories above the cylinder head,
• consistency with factory lubrication system solutions.

Choosing a used OEM component allows you to maintain engine performance characteristics in line with the manufacturer's specifications, without the need for aftermarket replacements with uncertain parameters.

Component characteristics and benefits of installation

The cylinder head rocker cover from this series has been designed for durability and resistance to thermal loads typical of a turbocharged gasoline engine. In practice, installing such a component allows you to:

• reduce the risk of leaks in the upper part of the engine,
• keep the area around tappets and valves clean,
• maintain an aesthetic, orderly engine bay appearance,
• minimize the time required for fitting and installation thanks to the factory design.

A used OEM component is a reasonable compromise between cost and maintaining the original technical specification, especially in the case of maintenance repairs or restoring a vehicle to full efficiency.

Condition, origin, and installation aspects

The component comes from disassembly and is offered as a used BMW part, which means it retains the original construction and compatibility with the manufacturer's factory solutions. Before installation, it is recommended to perform a standard inspection of the mating surfaces and use a new seal in accordance with the service procedure for the N55 engine.

The cover is intended for installation in place of the factory component, without the need for modifications to the cylinder head or accessories. As a result, service work can be carried out in typical workshop conditions using standard tools.

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

For drivers considering the use of premium used components in other brands, an interesting addition to your knowledge might be an article describing the advantages of original components from disassembly – more information can be found in the material about used parts for Mercedes from disassembly.