Radiator Coolant Hose BMW E60 E61 LCI 520d N47 Water Pipe 7799751

Radiator Coolant Hose BMW E60 E61 LCI 520d N47 Water Pipe is an original cooling system component from the Lines, hoses and pipes group, designed for precise coolant routing in the engine bay. Thanks to its factory geometry and robust construction, it ensures a stable connection between cooling system components, which translates into safe and predictable engine operation.

Specifications and technical data

• SKU: 7799751
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7787457
• Substitutable numbers: 7787457, 17127787457
• Fuel type: Petrol
• Category: Hoses, Lines & Pipes

Purpose and function in the cooling system

The presented radiator coolant hose is a component of the coolant transport system in BMW 5 Series E60/E61 LCI models, compatible with the N47 engine. It is responsible for a tight and stable connection between selected cooling system components, maintaining proper coolant flow and minimizing the risk of engine overheating.

The appropriately selected cross-section, shape, and length of the hose allow for collision-free routing in the engine bay, while maintaining the required installation clearances relative to other components. As a result, the element is not exposed to excessive vibrations or contact with hot parts, which promotes its durability in daily operation.

Construction and technical properties

The radiator coolant hose has been designed as an OEM part, which means it maintains the factory quality and dimensional standards specified by the vehicle manufacturer. The hose structure is adapted to operate at elevated temperatures and under operating pressures typical for BMW engine cooling systems, ensuring shape stability and reducing the risk of deformation during long-term use.

Key functional features of this element include:

• factory fitment for the specific BMW model cooling system,
• properly shaped geometry facilitating installation at original mounting points,
• construction adapted to operate in high-temperature and variable pressure conditions,
• maintenance of connection tightness when installed correctly.

Condition, origin, and benefits of choosing a used part

The offered radiator coolant hose is a used part, sourced from a dismantled BMW vehicle. Choosing an original second-hand component is a beneficial solution for users who expect factory fitment and proper compatibility with other system elements, while simultaneously reducing service costs.

Using original hoses instead of aftermarket replacements allows for maintaining the coolant flow characteristics designed by the manufacturer, which is important for engine operating temperature stability and the service life of other components. This is particularly significant in modern engines, where the cooling system operates within a strictly defined range of parameters.

Selection and compatibility with other elements

Before installation, it is recommended to verify the part's compatibility with the specific vehicle equipment version and other cooling system components. The product has a dedicated OEM part number and associated interchangeable numbers, which facilitates clear identification and selection of the correct hose for a given vehicle.

If you are planning broader cooling system maintenance or replacing several hoses at once, it is worth browsing other elements from the technical group available in the Lines, hoses and pipes category to complete a coherent set of parts matched to your BMW.

Technical support and additional information

When selecting used cooling system components, it is crucial to pay attention to compatibility with the specific engine and fuel type. In this case, the hose is intended for use with the N47 engine, which should be taken into account when planning repairs or vehicle upgrades.

If you want to better understand how to effectively choose original parts from the secondary market and what to look for when purchasing, check out our guide: The best used car parts – a guide to the most frequently chosen original parts. There, you will find practical tips helpful for completing parts for popular car models, including BMW vehicles.