Ford Focus Mk3 Engine Water Coolant Hose Pipe 2.0 TDCi Diesel FV41-18K579-BC

Ford Focus Mk3 Engine Water Coolant Hose Pipe 2.0 TDCi Diesel is an original cooling system component designed for diesel engines, ensuring a stable flow of coolant. Thanks to the factory geometry and hose diameter, proper liquid circulation is maintained, which supports safe operating temperatures for the power unit. This used OEM component is a sensible choice for cooling system maintenance when you prioritize precise fitment and predictable component performance.

Specifications and technical data

• SKU: FV41-18K579-BC
• Mark: Ford
• Condition: Used
• OEM Part Number: FV41-18K579-BC
• Substitutable numbers: FV41-18K579-BC, FV4118K579BC
• Fuel type: Diesel
• Part type: Hose
• Category: Coolant Hoses

Purpose and function in the cooling system

The coolant hose in the version dedicated to the 2.0 TDCi diesel engine is responsible for transporting fluid between cooling system components, such as the engine block, radiator, and other circuit parts. A correctly selected hose minimizes the risk of pressure drops, leaks, and localized overheating, which directly impacts the durability of the engine and its stability under various load conditions. In the case of diesel engines, which generate high thermal loads, a functional coolant hose is a crucial element in preventing overheating, system airlocks, and accelerated wear of seals.

Benefits of using an original Ford hose

Using an original coolant hose for the Ford Focus Mk3 ensures:

• factory fitment to cooling system mounts and connectors,
• appropriate flexibility and wall rigidity of the hose,
• compatibility with the operating parameters of the 2.0 TDCi diesel engine,
• reduced risk of improper hose routing in the engine bay. As a result, installation is predictable, and once installed, the hose maintains a stable position, does not rub against adjacent components, and requires no additional modifications. This solution is particularly beneficial for servicing vehicles used intensively, where repeatability and reliability are essential.

Characteristics of the used component

The offered hose comes from the Cooling system hoses and pipes group and is a used part, which allows for lower repair costs while maintaining the manufacturer's original specifications. This type of component is a good choice in situations where the existing hose shows signs of wear, such as cracks, loss of flexibility, signs of leakage, or deformations resulting from long-term operation at high temperatures. Replacing the coolant hose is recommended not only after a failure but also preventively during major service work on the diesel engine to reduce the risk of future leaks and the need for repeated disassembly of auxiliary components.

Technical support and additional information

When diagnosing engine operating temperature issues and planning the replacement of cooling system components, it is worth expanding your knowledge of typical symptoms and causes of failures. Practical tips regarding overheating, the principles of cooling circuit operation, and the impact of individual components on engine lifespan can be found in the article Engine cooling system – overheating, repair, and used radiators, which discusses real service scenarios and the consequences of neglect. If you are planning a comprehensive repair or upgrade of the engine area in your Ford and need other items from the same group, such as additional hoses, return lines, or sections connecting to the radiator, check out the available parts in the Ford cooling system hoses and pipes category.