Mini Cooper One D R55 R56 W16 Connecting Rod Crankshaft Drive Piston Conrod

The MINI Cooper One D R55 R56 piston with connecting rod D W16 is an original part of the crankshaft-piston system designed for diesel engines in MINI R55 and R56 models. This solution allows for professional engine repair while maintaining factory operating characteristics. By using parts from the Mini group, you can restore engine efficiency without compromising on fit and reliability.

Specifications and technical data

• SKU: 7806770
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 7806770
• Substitutable numbers: 11247806770, 7806770, 11247805951, 7805951, 22111094694, 1094694
• Category: Other Engine Parts

Purpose and Compatibility

The presented piston with connecting rod is dedicated to the power units used in MINI Cooper One D generations R55 and R56. The design has been developed for specific engine parameters, ensuring correct geometry, appropriate piston stroke, and proper interaction with the crankshaft and cylinder head.

Choosing a component from the same product family as the factory MINI equipment minimizes the risk of installation problems and improper engine operation. This is particularly important when repairing diesel engines, where dimensional tolerances and the mass of moving parts directly impact the smoothness of operation and durability.

Technical Characteristics of the Piston with Connecting Rod

The piston integrated with the connecting rod forms a complete assembly that transfers loads from the combustion chamber to the crankshaft. In practice, this means:

• maintaining the correct compression ratio,
• stable operation across the entire RPM range,
• proper piston guidance within the cylinder,
• appropriate cooperation with bearings and the piston pin.

The component comes from the Mini OE line, which translates to material and structural conformity with factory sub-assemblies. As a result, the crankshaft-piston system, after repair, retains parameters close to the original, and loads are distributed according to the manufacturer's specifications.

Component Condition and Service Application

The product is categorized under Other, indicating that it is a specialized component primarily intended for service and repair applications in specialized workshops. The used nature of the part allows for economical engine rebuilding while maintaining the original specifications, which is particularly beneficial when repairing engines with high costs for new components.

The piston with connecting rod is suitable for both localized repair of a single cylinder and for a more extensive engine overhaul when replacement of several crankshaft-piston system components is necessary. A properly selected and installed assembly helps reduce vibrations, improve running smoothness, and decrease the risk of secondary damage.

Benefits of Using an Original MINI Piston with Connecting Rod

Choosing an original piston-connecting rod assembly for the MINI Cooper One D R55 R56 offers a range of practical advantages:

• Factory Fit – the geometry and mass of the component comply with the manufacturer's specifications, facilitating installation and minimizing the need for additional modifications.
• Compatibility with Other Sub-assemblies – compatibility with the crankshaft, bearings, and engine head translates to stable unit operation.
• Safe Repair – using a component from the same family as the original reduces the risk of improper lubrication, excessive play, or seizure.
• Service Cost-Effectiveness – a used component helps reduce repair costs while maintaining a high level of technical compliance.

Additional Information and Other Products

If you are interested in other components from the Other category dedicated to this brand, check our offer at other MINI parts to select additional sub-assemblies for your car in one place.

To compare engine designs and solutions used in sports versions of other brands, you can read the technical article Audi RS vs. Other Models – What Lies Under the Hood and Chassis?, which discusses differences in the construction of power units, braking systems, and chassis.