Mini Cooper One R55 R56 R57 N12 N16 Throttle Body Housing Assy Petrol 7557222

Visual condition of the part

The product shows signs of use visible in the photos.

Mini Cooper One R55 R56 R57 N12 N16 Throttle Body Housing Assy Petrol is an original intake system component designed for Mini N12 and N16 petrol engines. Thanks to precise airflow control, it ensures stable engine operation, correct throttle response, and predictable vehicle behavior under various operating conditions. This is the solution for users looking for a proven, factory-spec throttle body instead of random aftermarket replacements.

Specifications and technical data

• SKU: 7557222-1
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 7557222
• Substitutable numbers: 13547557222, 7557222, 13548624190, 8624190, 13547576697, 7576697, 13547604919, 7604919, 13547574379, 7574379
• Fuel type: Petrol
• Category: Throttle Bodies

Purpose and function in the intake system

The offered throttle body is a component from the Throttle Bodies category, designed to work with Mini Cooper One petrol engines of the R55, R56, and R57 generations. It is responsible for regulating the amount of air drawn into the intake manifold, which has a direct impact on the fuel mixture, engine refinement, and acceleration dynamics.

In petrol engines, using the correct throttle body is crucial for:

• maintaining stable idle speed,
• smooth response to accelerator pedal input,
• proper communication with the engine control electronics,
• maintaining optimal fuel consumption.

Benefits of using an original Mini throttle body

Using an original Mini component instead of a worn or faulty throttle body allows you to restore the factory performance parameters of the engine. The design, tailored to specific petrol engine series, ensures:

• precise control of the throttle valve across the entire RPM range,
• proper compatibility with the factory engine control unit (ECU),
• reduced risk of diagnostic errors associated with incompatible replacements,
• stable operation during cold starts and at high operating temperatures.

For the user, this means more predictable vehicle behavior, better engine refinement, and a reduction in issues such as fluctuating idle or intermittent engine stalling.

Condition, origin, and practical application

The throttle body comes from the Mini brand and is a used component, which in practice allows you to combine factory fitment with an attractive price compared to new parts. For workshops specializing in Mini service and for informed users, this is a sensible choice for intake system repairs, especially when dealing with issues related to unstable idle or ECU errors regarding throttle position.

The component is intended for petrol-powered engines, so its use should be limited exclusively to petrol units that are structurally compatible with this reference. Proper selection of parts for the specific body style and engine of the Mini Cooper One R55, R56, or R57 helps avoid installation problems and electrical system incompatibilities.

Selection, compatibility, and service aspects

The throttle body has a dedicated OEM part number and a set of interchangeable numbers, which facilitates its identification in service catalogs and parts selection systems. This allows a workshop or seller to quickly verify compatibility with a specific N12 or N16 engine version, as well as compare it with other references used in the Mini range.

In practice, when replacing the throttle body in a Mini Cooper One, it is worth paying attention to:

• part number compatibility with the vehicle's documentation,
• type of fuel used (in this case, petrol),
• body generation (R55, R56, R57) and engine type.

This approach minimizes the risk of installing an incorrect component and shortens repair time, which is important for both the service center and the vehicle owner.

If you are planning a comprehensive repair or upgrade of the engine area in your Mini and need other components from the same group, such as throttle housings, airflow control elements, or related intake parts, check out the available parts in the Mini Throttle Bodies category.

Additional technical support and knowledge

For more advanced powertrain modifications, gear ratio changes, or adjusting the car's characteristics to an individual driving style, specialized knowledge regarding the operation of drive axles and differentials can be helpful. In such cases, it is worth consulting a guide that discusses gear ratio selection, component compatibility, and practical application examples in detail – you can find it in the article Dismantled drive axles and differentials – how to choose gear ratios for your driving style.

Summary

Mini Cooper One R55 R56 R57 N12 N16 Throttle Body Housing Assy Petrol is a technically matched intake system component designed for Mini petrol engines. It ensures proper airflow regulation, stable cooperation with engine electronics, and predictable vehicle behavior in daily use. For users and workshops looking for a factory solution, it is a practical choice for repairs and diagnostics of the intake system in Mini Cooper One models of the R55, R56, and R57 generations.