Water Hose BMW X3 F25 X4 F26 B47 Coolant Expansion Tank Pipe Line 9317617

Water Hose BMW X3 F25 X4 F26 B47 Coolant Expansion Tank Pipe Line is an original cooling system component from the Cooling system hoses and pipes group, designed for use in modern BMW X-series units. This used OEM component ensures proper coolant flow, stabilizing engine operating temperature and supporting safe vehicle operation.

Specifications and technical data

• SKU: 9317617
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 9317617
• Substitutable numbers: 9317617, 64219317617
• Category: Coolant Hoses

Purpose and function in the cooling system

The presented water hose is a cooling system component responsible for directing coolant flow between engine parts and accessories. In BMW X3 F25 and X4 F26 vehicles with the B47 engine, a correctly selected water hose is crucial for:

• maintaining a stable engine operating temperature,
• ensuring uniform coolant circulation,
• reducing the risk of overheating in city and highway driving conditions,
• proper cooperation with other cooling system components.

Thanks to a design tailored to the specific generation of the BMW X-series, the hose maintains the correct geometry in the engine bay, which facilitates installation and minimizes stress during operation.

Benefits of using an original BMW hose

Using an original water hose in the BMW X3 F25 and X4 F26 translates into a number of practical service benefits. Factory fitment eliminates the need for modifications, custom mounts, or additional clamps. The component has been designed for a specific cooling system, which promotes connection tightness and long-term operational stability.

A used OEM component is also a reasonable compromise between repair cost and quality – it allows you to maintain the integrity of the cooling system without having to resort to replacements with uncertain parameters. For workshops and individual users, this means predictable part behavior after installation and easier diagnostics of potential faults in the future.

Selection and installation in BMW X3 F25 / X4 F26 B47

The hose has been designed with the specific engine bay architecture of the X3 F25 and X4 F26 models with the B47 engine in mind, which facilitates its correct routing and connection to the cooling system ports. When replacing, it is recommended to:

• check the condition of other cooling system hoses and pipes,
• verify connection tightness after the engine warms up for the first time,
• use appropriate clamps and connectors in accordance with factory specifications,
• check the level and quality of the coolant after installation is complete.

This approach allows you to restore the proper operating conditions of the entire cooling system in a single service operation, reducing the risk of subsequent leaks or overheating.

Cooling system and operation in high temperatures

In vehicles with the B47 engine, the cooling system is particularly burdened when driving in high ambient temperatures, in traffic jams, or during dynamic operation. A functional water hose, free of cracks and deformations, helps maintain stable coolant flow, which translates into safe engine operation. To better understand the impact of temperature on the entire cooling system and the potential savings when using used components, it is worth reading the guide Summer heat vs. cooling system: used radiators and fans as a guarantee of savings.

Expansion and modernization of the BMW cooling system

If you are planning a comprehensive repair or modernization of the cooling system area in your BMW and need other elements from the same group, such as additional lines, hoses, or water pipes, check out the available parts in the BMW cooling system hoses and pipes category.

Summary

Water Hose BMW X3 F25 X4 F26 B47 Coolant Expansion Tank Pipe Line is a used, original cooling system component that allows you to restore proper coolant circulation in the B47 engine. Thanks to its factory fitment for the X3 F25 and X4 F26 models, it facilitates service, supports stable engine operating temperature, and provides a functional solution for users looking for a proven OEM part on a reasonable budget.