BMW 5 6 Series E60 E61N M5 E63 E64 M6 Water Hose Cooling Pipe 7834117

The BMW E60 E61 E63 M5 M6 Water Radiator Hose is an original part from the Hoses, Pipes & Tubes category, designed for the cooling system in sporty BMW 5 Series, 6 Series, and M models. This used OEM component ensures proper coolant flow, stabilizing engine temperature and supporting safe, dynamic vehicle operation.

Specifications and technical data

• SKU: 7834117
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7834117
• Substitutable numbers: 11537834117, 7834117
• Category: Hoses, Lines & Pipes

Purpose and Function in the Cooling System

The presented water radiator hose is a component of the cooling system responsible for directing fluid between the radiator and other engine components. In BMW E60, E61, E63 models, as well as M5 and M6 versions, it is responsible for:

• maintaining stable coolant flow under high engine load conditions,
• reducing the risk of engine overheating,
• proper cooperation with the factory radiator and other cooling system hoses.

Thanks to its construction in line with factory BMW standards, the hose maintains the correct geometry, which facilitates installation and minimizes the risk of leaks.

Construction and Fitment for BMW E60, E61, E63, M5, M6

The hose is designed as an OEM part, meaning its shape, connection diameters, and routing are adapted to factory mounting points in the engine bay. This ensures:

• secure seating on radiator spigots and engine components,
• appropriate bending radius, limiting kinks and flow restriction,
• compatibility with original clamps and mounting brackets.

Such a precise fit is particularly important in powerful M5 and M6 engines, where the cooling system operates under increased thermal load, and stable coolant flow is crucial for engine durability.

Benefits of Using an Original Radiator Hose

Using an original water radiator hose instead of a worn-out or aftermarket replacement allows you to maintain the cooling system's operating parameters as intended by the manufacturer. The main advantages include:

• Factory Fitment for BMW – no need for modifications, drilling, or diameter adjustments.
• Reduced risk of coolant leaks due to correct geometry and compatibility with original connectors.
• Stable cooling system operation during highway driving and dynamic M model use.
• Ability to restore proper system function after a failure, crack, or delamination of the old hose.

A used OEM part is a sensible choice for drivers who want to maintain their car in a condition close to factory, while benefiting from a favorable cost-to-quality ratio.

Condition, Verification, and Service Application

The hose is a used part from a dismantled vehicle and is offered as a verified used component, suitable for service applications in BMW 5 Series and 6 Series vehicles, as well as M5/M6 versions. This type of part is particularly useful when:

• the existing hose shows signs of aging, cracking, or leaks,
• a quick repair of the cooling system is necessary without altering its structure,
• maintaining the original manufacturer's specifications is a priority.

Thanks to retaining the original hose specifications, installation is intuitive, and the risk of service errors is minimized.

More BMW Hoses, Pipes & Tubes and Cooling System Knowledge

If you are looking for other BMW Hoses, Pipes & Tubes for your car, check out the BMW Hoses, Pipes & Tubes available in our store to find parts perfectly matched to your specific model.

Want to better understand how to care for your cooling system and when to replace radiator hoses? Read the guide article Engine Cooling System – Overheating, Repair, and Used Radiators, where you will find practical tips on diagnostics and operation.