Coolant Line BMW F01 F02 LCI 730d F10 F11 530d N57N Coolant Hose Tube 7811984

BMW F01 F02 LCI 730d and F10 F11 530d N57N Engine Coolant Hose is an original mounting component designed for precise coolant flow in BMW diesel engines. With its factory geometry and fitment for specific generations of the 7 and 5 Series body styles, it ensures a stable connection within the cooling system and proper circulation of the working fluid. This solution is dedicated to users who expect compatibility with the factory installation and predictable performance of the component during long-term operation.

Specifications and technical data

• SKU: 7811984
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7811984
• Substitutable numbers: 17127811984, 7811984
• Category: Clamps & Hardware

Purpose and Function in the BMW Cooling System

This coolant hose is designed to work with the N57N engine in BMW 7 Series F01/F02 LCI 730d and 5 Series F10/F11 530d models. It is responsible for controlled coolant flow between system components, which directly impacts the stable operating temperature of the engine. The appropriately selected shape and connection diameters allow for a leak-proof installation at the factory mounting points, without the need for modifications to the system.

Construction and Mounting Fitment

The hose has been developed as part of the Clamps and Mounting Parts group, meaning its geometry, support points, and routing are adapted to the original mounting system in the BMW engine bay. This ensures:

• maintaining the correct position relative to other cooling components,
• minimizing the risk of abrasion and stress resulting from engine operation,
• ensuring compatibility with factory clamps and mounting brackets.

Its original BMW origin promotes consistency throughout the system, which is particularly important in high thermal load diesel engines.

Characteristics of the Used Component

The offered coolant hose is a used part, meaning it comes from a dismantled vehicle and has been verified for its suitability for further use. This type of part allows for economical repair of the cooling system while maintaining the original BMW mounting specifications. Choosing a used OEM component is particularly beneficial where preserving the original hose routing and compatibility with existing brackets and clamps is crucial.

Selection by OEM Number and Compatibility

To ensure the hose is fully compatible with a specific version of the BMW 5 or 7 Series, it is advisable to verify compatibility using the OEM number and interchangeable part numbers. This helps avoid issues with the fitment of spigot diameters, hose length, or the arrangement of mounting points. Especially with the N57N engine, where the cooling system is complex, correct part identification directly impacts the reliability of the entire system.

If you want to check the hose's compatibility with a specific car model step-by-step based on the VIN and manufacturer's markings, refer to the practical tips in the article Guide: How to Select the Right Car Part by VIN and OEM Number. This will facilitate compatibility verification before installation.

Integration with Other BMW Mounting Parts

The coolant hose works in conjunction with other mounting elements and clamps in the engine bay, forming a cohesive fluid routing system. Proper hose positioning relative to the radiator, water pump, and other hoses reduces the risk of leaks and localized overheating. By maintaining the factory geometry, a clear system layout is possible, which facilitates future servicing and diagnostics.

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other parts from the same group, such as clamps, brackets, or additional hose mounts, check the available parts in the BMW Clamps and Mounting Parts category.

Summary of Coolant Hose Application

Coolant Line BMW F01 F02 LCI 730d F10 F11 530d N57N Coolant Hose Tube is an original coolant hose designed for specific BMW models with the N57N engine, ensuring proper coolant flow and consistency with the factory mounting system. Choosing this component allows for the preservation of the manufacturer's intended design, which promotes stable engine operation and facilitates future vehicle servicing.