Mini Cooper S R55 R56 R57 Petrol N14 Engine Cylinder Head Vacuum Pump 7556919

Mini Cooper S R55 R56 R57 Petrol N14 Engine Cylinder Head Vacuum Pump is a specialized brake system component designed for N14 petrol engines in Mini Cooper S R55, R56, and R57 series models. It is responsible for generating stable vacuum for the brake booster, which translates into predictable pedal response and safe deceleration. This solution is dedicated to users who expect an efficient, technically matched vacuum pump for their Mini.

Specifications and technical data

• SKU: 7556919-1
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 7556919
• Substitutable numbers: 11667556919, 7556919
• Fuel type: Petrol
• Category: Vacuum Pumps

Purpose and function in the brake system

The presented pump belongs to the Vacuum pumps category and is structurally adapted to work with the N14 unit powered by petrol. Its task is to generate the appropriate vacuum that supports the brake booster, providing the driver with a noticeably lighter pedal feel and repeatable braking performance under various operating conditions. In Mini Cooper S R-series petrol engines, where the brake system operates under high load, an efficient vacuum pump is crucial for:

• maintaining stable brake assistance during dynamic driving,
• preserving the correct brake pedal characteristics,
• reducing the risk of decreased braking efficiency during frequent system use.

Compatibility with Mini Cooper S R55 R56 R57 N14

The pump has been designed as a component compatible with the factory architecture of the N14 unit in Mini Cooper S R55, R56, and R57 generations. This means it matches the mounting, connections, and operating parameters of the original brake system of these models. As a result, it is a practical solution both for standard replacement of a worn pump and for repairs related to vacuum loss in the system. Selecting the right vacuum pump for a specific petrol engine variant allows for maintaining factory brake performance characteristics, which is particularly important in high-performance vehicles such as the Mini Cooper S.

Characteristics of the used component

The offered brake vacuum pump is a used component, meaning it has been removed from a vehicle and verified for further serviceability. This type of part is a good choice for users looking for a technically sound component at a more favorable price than a new OEM replacement, while maintaining the original design and fitment to the system. Choosing a used Mini vacuum pump allows for an economical repair of the brake system without the need for installation interference or the use of solutions requiring modifications.

Installation and operating tips

When replacing the brake vacuum pump in a Mini Cooper S with an N14 engine, it is worth paying attention to several technical aspects:

• checking the tightness of vacuum lines after installation,
• verifying the correct operation of the brake booster after the first engine start,
• evaluating the brake pedal response during a test drive. A correctly selected and installed vacuum pump ensures stable brake assistance, which translates into predictable vehicle behavior in emergency situations. This is especially important in cars with a sporty character, where the brake system is used intensively.

Expanding technical knowledge

If you want to better understand the relationships between petrol engine operation, pumps, fuel supply, and part selection by OEM numbers, it is worth consulting our guide material. Practical information on diagnostics, selection, and regeneration of fuel supply components can be found in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration, which helps organize knowledge about the cooperation of individual components. If you are planning a comprehensive repair or upgrade of the braking zone in your Mini and need other elements from the same group, such as vacuum pumps, mounting elements, or additional power assist system components, check the available parts in the Mini vacuum pumps category.