Mini Cooper R56 R55 R57 Petrol N12 120HP Complete Engine N12B16A WARRANTY

Warranty and technical condition of the part

The engine is sold with a 90-day warranty.

The warranty covers the engine itself; engine accessories are covered by a 30-day warranty.

The power unit was tested before removal and is in full working order.

Listing details

The offer applies to a complete engine.

The engine comes from a right-hand drive (RHD) vehicle. The wiring harness is not compatible with left-hand drive (LHD) vehicles and requires replacement or modification.

Mini Cooper R56 R55 R57 Petrol N12 120HP Complete Engine N12B16A WARRANTY is a factory-spec powertrain unit designed for Mini models with the N12 120HP engine. This is the ideal solution for users looking to restore their vehicle's full performance while maintaining the original operating characteristics and compatibility with factory vehicle systems.

Specifications and technical data

• SKU: 0444886-1
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 11000444886
• Substitutable numbers: 11000444886, 0444886, 11007559128, 7559128, 11000444887, 0444887, 11007559131, 7559131
• Fuel type: Petrol
• Number of cylinders: 4
• Category: Engines
• Mileage: 59 000

Technical specifications of the N12B16A engine

The presented engine belongs to the family of modern Mini petrol units, featuring a four-cylinder inline configuration. This setup ensures smooth operation, good refinement, and predictable throttle response, which is particularly important in the lightweight, dynamic bodies of the Mini Cooper.

The unit was designed for daily use in both urban and extra-urban traffic, while maintaining reasonable fuel consumption. The N12B16A petrol engine works well with both manual and automatic transmissions used in the Mini R56, R55, and R57, making it easy to integrate into various equipment configurations.

Purpose and compatibility with Mini Cooper R56/R55/R57

The engine was developed specifically for the Mini Cooper R56 generation, as well as the R55 (Clubman) and R57 (Convertible) body styles with the 120HP N12 unit. As a result, it maintains full compatibility with the factory electrical installation, cooling system, and ancillaries intended for these models.

In practice, this means that with proper installation, you can achieve:

• consistency with the original engine management and vehicle electronics,
• retention of factory power parameters and torque characteristics,
• easier diagnostics using standard Mini/BMW service tools.

Benefits of using a complete engine

Choosing a complete petrol engine for your Mini Cooper significantly reduces repair time compared to a major overhaul of a worn-out unit. From the perspective of both the workshop and the user, this means:

• fewer mechanical operations compared to a full rebuild of an old engine,
• reduced risk of hidden internal damage, which is common in heavily exploited units,
• the ability to restore stable drivetrain operation in cars where the previous engine suffered a major failure.

Additionally, the N12 family unit is well-known to independent workshops specializing in Mini, which facilitates both installation and subsequent service maintenance.

Condition, mileage, and practical application

The engine comes from a vehicle operated under normal road conditions and is offered as a used item from the Engines category. The declared mileage allows this unit to be treated as a base for further operation or as a foundation for potential partial refurbishment in a specialized workshop.

Such a solution is particularly beneficial when the existing engine in a Mini Cooper has suffered mechanical damage (e.g., seizure, cracked block) and its repair is no longer economically justified. Using a complete powertrain unit allows for restoring the vehicle's functionality while maintaining the manufacturer's original specifications.

Technical support and additional materials

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 blocks, cylinder heads, or complete powertrain units, check out the available parts in the Mini Engines category.

Before deciding to replace the powertrain unit, it is worth familiarizing yourself with the typical design issues of modern engines to better assess the cost-effectiveness of the repair. A good point of reference may be an article describing critical units in another popular model, which shows how certain solutions affect service costs – check out the material: Faulty BMW E90 engines: check what can ruin your budget!.

If you are considering a wider replacement of components in your Mini Cooper and want to better understand when used parts are a reasonable choice in terms of cost and durability, the following guide will be helpful: Used car parts for Mini Cooper – a way for style and savings.