BMW MINI Cooper One R55 R56 R57 Upper Radiator Coolant Pipe Hose Petrol 2754221

MINI R55 R56 R57 Water Hose Pipe Fuel is an original cooling system component from the Hoses, Pipes & Tubes category, designed for Mini cars with a gasoline engine. This used OEM part ensures proper coolant flow, stable engine operation, and compliance with the factory system design. It's a practical solution for workshops and users seeking a proven component instead of replacements of unknown origin.

Specifications and technical data

• SKU: 2754221-1
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 2754221
• Substitutable numbers: 17122754221, 2754221, 17127647004, 7647004
• Fuel type: Petrol
• Category: Hoses, Lines & Pipes

Application and Function in the Cooling System

The water hose in Mini R55, R56, and R57 models is responsible for safely directing coolant between system components such as the engine block, radiator, and connection housings. A correctly selected hose:

• maintains the tightness of the cooling circuit under typical operating loads,
• ensures stable fluid flow, reducing the risk of engine overheating,
• is matched in shape and diameter to the factory spigots for the specific Mini model.

This allows the cooling system to maintain parameters close to factory specifications, and installation does not require modifications or the use of additional adapters.

Compatibility with Gasoline Engines

The presented hose is designed to work with engines powered by gasoline fuel. This means it is appropriately matched to the operating temperatures and performance characteristics typical for Mini gasoline engines, including:

• resistance to temperature changes in urban and extra-urban driving cycles,
• adaptation to operating pressures within the cooling system,
• compatibility with coolants used in Mini gasoline engines.

Such matching reduces the risk of leaks and helps maintain stable engine operating conditions in various driving modes.

Characteristics of a Used OEM Part

As an original Mini part from the aftermarket, the water hose retains its factory geometry, mounting points, and connection diameters. In practice, this means:

• secure fitment with other cooling system components,
• no need to adjust the hose length or shape,
• preservation of the original hose routing in the engine bay.

A used OEM part is particularly valued in professional workshops where assembly repeatability, predictable component behavior, and quick replacement without experimenting with aftermarket alternatives are crucial.

Benefits of Using a Mini Water Hose

Using a water hose dedicated to Mini R55, R56, and R57 offers a range of practical benefits:

• Reduced risk of overheating – proper coolant flow stabilizes engine operating temperature.
• Factory fitment – the original hose geometry facilitates installation and eliminates collision issues with other engine bay components.
• Diagnostic support – maintaining the original hose layout makes it easier for mechanics to assess the condition of the entire cooling system.

For users, this translates to a lower risk of failures related to leaks and more predictable long-term service costs.

Mini Hoses, Pipes & Tubes – Selection and Additional Information

If you are looking for other components from the Hoses, Pipes & Tubes category dedicated to this brand, check out the Mini hoses, pipes & tubes available in our store to select components that fit your car's specific engine version and year.

Want to better understand how the availability of used OEM parts affects repair time and workshop organization? Read the article Immediate Availability of Car Parts vs. Repair Time – How Used OEM Shortens Workshop Stays?, where we discuss the practical aspects of using original aftermarket components.