BMW E60 E61 E63 E64 Brake Booster Master Cylinder Unit 6765937

BMW E60 E61 E63 E64 Brake Booster Master Cylinder Unit is an original braking system component from the Brake boosters and brake force regulators category, designed for BMW 5 and 6 series E6x generation models. This OEM solution ensures proper brake assistance, stable pedal operation, and predictable vehicle response during daily use.

Specifications and technical data

• SKU: 6779742
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6779742
• Substitutable numbers: 34336779742, 6779742, 34336761086, 6761086, 34332282819, 2282819, 34336766595, 6766595, 6765937, 6778826, 34316761073, 6761073, 34336786586, 6786586, 34336781621, 6781621, 34316761079, 6761079, 6786556
• Category: Brake Servos

Purpose and function in the braking system

The brake booster in BMW E60, E61, E63, and E64 series is responsible for increasing the force applied by the driver to the pedal, allowing for effective braking with minimal pressure. A properly selected booster ensures:

• stable, predictable brake pedal operation,
• adequate assistance across the full load range,
• consistent operation with the master cylinder and ABS/DSC system.

By using an original BMW solution, the factory characteristics of the braking system are maintained, which translates into safety and driving comfort.

Compatibility and interchangeable numbers

The offered brake booster comes from the BMW OE line and is a component structurally intended for the E60, E61, E63, and E64 platforms. The part has a dedicated OEM number and a set of interchangeable numbers, which facilitates precise identification and selection for a specific engine version and equipment level.

Thanks to the presence of multiple reference numbers, you can safely replace a worn or damaged component with another compatible factory version, maintaining full compatibility with the existing braking system and vehicle electronics.

Product characteristics and advantages of using BMW OE parts

The brake booster in this offer is a BMW OE component, which means maintaining factory design and quality standards. In practice, this translates into:

• proper fitment to the engine bay mounts and geometry,
• correct cooperation with the master cylinder and lines,
• appropriate assistance characteristics in accordance with the manufacturer's specifications.

Condition: used means that the component comes from dismantling, which allows for economical repair while maintaining the original BMW specification. This solution is particularly beneficial when servicing older 5 and 6 series models, where the priority is combining proper system operation with reasonable repair costs.

Professional selection and application in service practice

When replacing the brake booster in a BMW E60, E61, E63, or E64, it is crucial to match the part by OEM number or interchangeable numbers and verify compatibility with the specific body version and engine unit. Using an original booster from the same design group minimizes the risk of installation problems and ensures:

• maintenance of the factory pedal travel distance,
• proper operation of assistance systems (ABS/DSC),
• no need for modifications to the installation or mounts.

This solution is recommended both for workshops specializing in the BMW brand and for conscious users overseeing repairs themselves.

Braking system expansion and additional components

If you are planning a comprehensive repair or upgrade of the braking zone in your BMW and need other components from the same group, such as master cylinders, brake force regulators, or additional assistance elements, check the available parts in the BMW Brake boosters and brake force regulators category.

For users who are simultaneously servicing the air conditioning or heating system in their car, a guide describing the selection of used OEM components, service schedules, and frequently asked questions may be helpful – details can be found in the article Air conditioning and heating – part selection and maintenance for year-round comfort.

Summary

BMW E60 E61 E63 E64 Brake Booster Master Cylinder Unit is a technically matched braking system component from the BMW OE line, allowing for the restoration of proper brake assistance and factory pedal feel. Choosing an original booster with the correct reference numbers is a safe solution for drivers who care about maintaining the handling characteristics intended by the manufacturer, while utilizing a proven, used part.