Water Pipe Mercedes W639 Engine Cooling Coolant Hose Line A6395017382

Mercedes W639 Water Hose Pipe Tube is a component from the Cooling System Hoses and Pipes group, designed for vehicles with diesel engines. It ensures efficient coolant flow within the system, supporting stable engine operating temperature and reducing the risk of overheating.

Specifications and technical data

• SKU: A6395017382
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6395017382
• Substitutable numbers: A6395017382, A 639 501 73 82, KZ
• Fuel type: Diesel
• Category: Coolant Hoses

Purpose and Function in the Cooling System

The water hose dedicated to the Mercedes W639 model operates within the coolant circuit, ensuring controlled flow between system components. In diesel vehicles, stable cooling is crucial for engine durability, therefore a sealed and correctly shaped hose minimizes performance drops and undesirable temperature fluctuations.

This component is part of the system responsible for:

• transporting coolant between engine sub-assemblies,
• maintaining proper pressure in the circuit,
• reducing local overheating in the engine area.

Benefits of Using an Original Hose

Using a water hose specifically designed for the Mercedes W639 generation allows for the preservation of the original hose routing geometry, which facilitates installation and minimizes system stress. The appropriately selected cross-section and shape of the hose promote stable fluid flow, leading to uniform cooling of the diesel engine.

Key advantages include:

• Structural compatibility with the cooling system of the specific body series,
• maintaining the correct hose routing path in the engine bay,
• reducing the risk of leaks resulting from improper fit of aftermarket alternatives.

Component Condition and Application in Diesel Vehicles

The offered hose is from the used parts category, allowing for economical repair of the cooling system while maintaining proper operating parameters. In diesel vehicles, where thermal loads are high, a functional water hose significantly contributes to protecting the engine from overheating and ensures stable operation over long service cycles.

The component is suitable for both standard replacement of a worn hose and for more extensive service work, including cooling system refresh, circuit bleeding, or replacement of other cooperating components.

Technical Support and Further Knowledge on Cooling Systems

To better understand the impact of functional water hoses on engine durability and the entire coolant circuit, it is worth consulting a guide on cooling system diagnostics and service – the article Engine Cooling System – Overheating, Repair, and Used Radiators discusses this in detail. It helps in better planning service work and selecting appropriate components.

If you want to approach component selection consciously and compare the advantages of new and used parts in terms of cost and durability, the material Car Parts – New or Used? Comparing Costs, Quality, and Durability will also be helpful, discussing practical aspects of selecting replacement parts.

Expanding the Cooling System in a Mercedes

If you are planning a comprehensive repair or modernization of the engine area in your Mercedes and need other components from the same group, such as additional pipes, return hoses, or connections to the radiator, check the available parts in the Mercedes Cooling System Hoses and Pipes category.