Mini Cooper R56 R55 120HP Complete Engine N12B16A Petrol N12 16k miles, 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 120HP Complete Engine N12B16A Petrol N12 16k miles, WARRANTY is a factory power unit designed for Mini R-series models, offering modern engineering and proven performance characteristics. Thanks to its four-cylinder layout and optimized configuration, the engine ensures smooth, dynamic driving and stable operating parameters, while the low mileage of this used unit makes it an attractive alternative to the costly refurbishment of an old engine.

Specifications and technical data

• SKU: 0444886-5
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 0444886
• Substitutable numbers: 11000444886, 0444886, 11007559128, 7559128, 11000444887, 0444887, 11007559131, 7559131
• Fuel type: Petrol
• Number of cylinders: 4
• Category: Engines
• Mileage: 16049

Technical characteristics of the N12B16A engine

The presented engine belongs to the Engines category and is designed for petrol fuel, which promotes refined operation and good throttle response in typical urban and extra-urban conditions. The four-cylinder layout provides a balanced combination of performance and economy, and the N12 series design is well-known in workshops specializing in the Mini brand, which facilitates maintenance and potential service work.

The unit is complete, which in practice means it can be efficiently transferred to the vehicle without the need to search for many additional accessories. This type of solution reduces vehicle downtime in the workshop and limits the risk of compatibility issues with individual components.

Application and selection for Mini Cooper R56/R55

The N12B16A engine was designed with the specifics of the R56 and R55 bodies in mind, ensuring it maintains the correct mounting points, geometry, and compatibility with the vehicle's factory electronics. In practice, this translates into:

• easier installation in the engine bay without structural modifications,
• preservation of the original handling and acceleration characteristics,
• consistency with factory control and diagnostic systems.

For workshops and end-users, this means a predictable replacement process and a lower risk of unexpected problems after installation. A properly selected OEM engine allows for restoring the vehicle's full functionality while maintaining the manufacturer's factory specifications.

Benefits of choosing a used Mini petrol engine

A used Mini petrol engine with low mileage represents a reasonable compromise between cost and durability. Compared to a full rebuild of a worn-out unit or purchasing a new engine, a complete used engine allows for significant cost savings while shortening repair time. Additionally, maintaining the original Mini specification promotes trouble-free operation and facilitates subsequent service maintenance.

A significant advantage is also the inclusion of a warranty, which increases purchase security and provides the workshop and vehicle owner with additional protection in the event of unforeseen defects after installation. An engine with a warranty makes the entire repair operation a more predictable cost.

Selection by OEM/VIN and expert knowledge

When selecting a power unit for a specific Mini vehicle, it is crucial to verify compatibility using the OEM number and the vehicle's VIN. This helps avoid issues with the compatibility of accessories, wiring harnesses, or control units. Proper selection is particularly important for engines from the same family, which may come in several variants.

To better understand how to safely purchase used power units and what verification procedures to apply, it is worth checking out the expert guide Why it is worth buying used gearboxes and engines – facts instead of myths, which discusses, among other things, selection by VIN/OEM, common myths, and repair cost ratios.

Other Mini engines – expansion and modernization

If you are planning a comprehensive repair or modernization of the engine area in your Mini and need other components from the same group, such as complete power units, engine blocks, or alternative power configurations, check out the available parts in the Mini Engines category.