Mini Cooper D R55 R56 R57 LCI N47N 1 Radiator Cooler Coolant Pipe Hose 7811783

The Mini Cooper D R55 R56 R57 LCI Radiator Hose N47N is an original cooling system component designed for facelifted Mini models with the N47N engine. Thanks to its factory geometry and precise fit to the radiator and engine connections, this hose ensures stable coolant flow and helps maintain the safe operating temperature of the power unit. It's a practical solution for users seeking a proven cooling system component rather than replacements with uncertain parameters.

Specifications and technical data

• SKU: 7811783-1
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 7811783
• Substitutable numbers: 17127811783, 7811783, EM
• Category: Coolant Hoses

Purpose and Function in the Cooling System

The presented hose belongs to the Cooling System Hoses and Lines group, responsible for transporting coolant between key engine and radiator components. In the Mini Cooper D R55, R56, and R57 LCI series with the N47N engine, this hose operates under conditions of elevated temperature and pressure, making its correct fit directly impact the thermal stability of the power unit.

A properly selected radiator hose:

• ensures a sealed connection within the cooling system,
• minimizes the risk of coolant leaks,
• maintains proper coolant flow under engine load,
• reduces the risk of overheating in urban and highway conditions.

Why Choose an OE Mini Part

The radiator hose dedicated to Mini has been designed as an OE part, meaning full compliance with the manufacturer's factory specifications. In practice, this translates to:

• precise fit to the connections and mounting points in the engine bay,
• retention of the original hose routing,
• appropriate flexibility combined with resistance to thermal deformation.

This ensures a predictable installation process without the need for modifications or additional adapters, and the cooling system retains near-factory performance.

Characteristics of the Used Component

The offered hose is a used part and is designated as a used OE component. For many Mini users, this represents a sensible compromise between cost and quality – an original part that retains its factory geometry and material properties, while also allowing for cost savings compared to a new part.

When replacing a radiator hose, it's worth paying attention to:

• the condition of the hose's working surface (no cracks or deep abrasions),
• the material's flexibility in bent areas,
• the cleanliness of the hose's interior before installation.

Choosing a used OE component is particularly beneficial for routine maintenance repairs when preserving the original design of the Mini cooling system is a priority.

Installation and Maintenance Tips

When installing the radiator hose in a Mini Cooper D R55/R56/R57 LCI with the N47N engine, it is recommended to:

• check the condition of the radiator and engine connections for corrosion and mechanical damage,
• replace hose clamps with new ones of the appropriate diameter range,
• thoroughly bleed the cooling system after filling with fresh coolant,
• re-check for leaks after the first few kilometers of driving.

This approach helps maintain stable cooling system operation and reduces the risk of engine overheating failures, especially during summer or under intensive vehicle use.

Cooling System Expansion and Additional Materials

If you are planning a comprehensive repair or upgrade of the engine area in your Mini and need other parts from the same group, such as additional lines, flexible return hoses, or connections to the radiator, check the available parts in the Mini Cooling System Hoses and Lines category.

To better understand how thermal conditions affect the durability of hoses and the entire cooling system, consult our guide: Summer Heat vs. Cooling System: Used Radiators and Fans Guarantee Savings. You will find practical tips on operating and selecting used cooling components for passenger cars.