BMW 5 6 Series E60 M5 E63 M6 Engine Cooling Radiator Supply Hose 7834052

BMW 5 6 Series E60 M5 E63 M6 Engine Cooling Radiator Supply Hose is an original cooling system component from the Lines, hoses and pipes group, designed for use in BMW M-series sports models. This used OEM part ensures factory-spec geometric fitment and proper coolant flow characteristics, which translates into stable engine performance under a wide range of loads.

Specifications and technical data

• SKU: 7834052
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7834052
• Substitutable numbers: 11537834052, 7834052, 11537840416, 7840416
• Category: Hoses, Lines & Pipes

Purpose and function in the cooling system

The water hose used in the BMW E60 M5 and E63/E64 M6 is responsible for the controlled transport of coolant between the components of the high-performance engine cooling system. The properly shaped pipe minimizes the risk of kinks, local restrictions, and cavitation, which helps maintain a stable operating temperature for the power unit even during dynamic driving.

Thanks to its factory geometry, the hose works with stock connectors, clamps, and mounts, which limits material stress and reduces the risk of leaks in the long term.

Advantages of using an original BMW hose

Choosing an original BMW water hose with this reference primarily offers:

• guaranteed fitment for the cooling system in M5 E60 and M6 E63/E64 models,
• preservation of the factory hose routing,
• appropriate material stiffness and flexibility under high-temperature conditions,
• compatibility with original mounting elements.

This solution helps reduce the risk of engine overheating resulting from improper coolant flow and facilitates future service, as the system remains compliant with the manufacturer's documentation.

Part condition and service application

The offered item is a used original BMW part, which in practice means maintaining factory specifications while saving money compared to new replacements. This type of hose is suitable both for standard replacement of worn cooling system components and for repairs following a failure related to leaks or overheating.

Before installation, a standard service procedure is recommended: checking for leaks, inspecting connection surfaces, and replacing hose clamps if their condition is questionable. A properly installed hose allows for the restoration of nominal cooling system operating parameters without the need for system modifications.

Technical support and OEM part selection

Dedicated manufacturer markings and interchangeable numbers are provided for this model, which facilitates clear identification of the component in BMW catalogs and service systems. In case of doubt during selection, it is worth comparing the shape and connection points with the currently installed hose in the vehicle to confirm full compatibility.

If you are planning a comprehensive repair or upgrade of the cooling system area in your BMW and need other components from the same group, such as additional water lines, flexible hoses, or rigid pipes carrying coolant, check the available parts in the BMW lines, hoses and pipes category.

Safety of using used OEM parts

Using a used OEM part in critical vehicle systems, such as engine cooling, is often a reasonable compromise between costs and maintaining factory parameters. Original components are designed with specific thermal and mechanical loads for a given model in mind, which translates into predictable behavior during operation.

If you want to better understand why original used cooling system components can be a safe and economical choice, it is worth reading the article Quality assurance and OEM safety – why are used original car parts the best choice for your car?, which discusses in detail the advantages of using OEM components in vehicle service.