BMW Mini Cooper R55 R56 R57 LCI R58 R59 N47N Water Pipe Coolant Hose 7811780

BMW Mini Cooper R55 R56 R57 LCI R58 R59 N47N Water Pipe Coolant Hose is an original cooling system component designed for MINI R55, R56, and R57 LCI (facelift) models with the N47N engine. As part of the Lines, hoses and pipes group, it is responsible for the stable flow of coolant between engine components, which directly impacts its durability and operational safety. This is a practical solution for users looking for proven, factory-spec hose geometry without the need for aftermarket replacements.

Specifications and technical data

• SKU: 7811780
• Mark: Mini (Genuine OE)
• Condition: Used
• OEM Part Number: 7811780
• Substitutable numbers: 17127811780, 7811780
• Category: Hoses, Lines & Pipes

Purpose and function in the MINI cooling system

The presented water pipe is designed specifically for the architecture of the N47N engine in R55, R56, and R57 facelift models. It is responsible for the controlled transport of coolant between system components, maintaining a stable operating temperature for the power unit. By maintaining the factory shape and connection diameters, the hose works with original connectors, clamps, and housings, which reduces the risk of leaks and improper fitment in the engine bay.

A properly selected water hose is crucial for:

• replacing a damaged or perished hose in an existing cooling system,
• repairs after engine overheating, when it is necessary to inspect and replace rubber and plastic components,
• restoring the factory configuration after previous non-original modifications.

Original origin and fitment for MINI

As a Mini brand part, the hose maintains factory flow and stiffness parameters, which translates into predictable cooling system behavior under various load conditions. The original design facilitates installation – the hose is routed according to factory paths, does not interfere with other components in the engine bay, and requires no additional modifications.

For users looking for other cooling system elements or similar components, it is worth checking related products in the Lines, hoses and pipes category, which will make it easier to complete the entire repair kit in one place.

Characteristics of the used component

The offered hose is a used item, which in practice means it has been removed from a vehicle and verified for further installation suitability. This type of part is a good choice for vehicle maintenance where maintaining original specifications while optimizing repair costs is important. A used water pipe allows for the restoration of proper coolant circulation without the need to resort to cheaper replacements with uncertain geometry.

Choosing an original, used component is particularly beneficial in situations where you care about:

• maintaining factory hose routing in the engine bay,
• compatibility with existing brackets and mounts,
• avoiding problems with matching diameters and bend angles of the hose.

Technical support and part selection

When selecting a water pipe for a MINI R55, R56, or R57 LCI with an N47N engine, it is crucial to verify compatibility with the specific equipment version and vehicle year. Manufacturer markings and available interchangeable numbers are helpful in confirming compatibility with a given car. In case of expansion or a larger scope of repairs, it is worth checking out guide materials, such as a comparison of stock and sports suspension and the selection of used components, which show how to consciously choose parts from the secondary market.

An additional source of knowledge about the practical selection of consumables and repair parts can also be the Global Parts blog on diagnostics and replacement of key components, where typical service scenarios and ways to minimize risks when purchasing used parts are discussed.

Summary of the MINI water pipe application

BMW Mini Cooper R55 R56 R57 LCI R58 R59 N47N Water Pipe Coolant Hose is a practical solution for MINI owners who want to restore proper cooling system operation while maintaining factory specifications. Its original origin, fitment for the specific generation and engine, and ability to integrate with existing elements make it a sensible choice for repairs and maintenance of the cooling system in R-series MINI vehicles.