Mercedes W205 Water Radiator Pipe Hose Coolant Cooling Line A2055010782

Mercedes W205 Water Radiator Pipe Hose Coolant Cooling Line is an original cooling system component designed for the precise routing of coolant in Mercedes vehicles. Thanks to its factory geometry and specific fitment for the W205 platform, the hose ensures stable coolant flow and supports the proper operation of the engine's entire thermal management system.

Specifications and technical data

• SKU: A2055010782
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2055010782
• Substitutable numbers: A2055010782, A 205 501 07 82
• Category: Coolant Hoses

Technical characteristics and purpose

The hose belongs to the Cooling system pipes and hoses group, meaning it is responsible for transporting coolant between key system components, such as the radiator, engine block, or auxiliary heat exchangers. The properly shaped routing of the hose minimizes the risk of kinking, reduces pressure drops, and helps maintain a stable operating temperature for the powertrain.

Its original Mercedes origin ensures compliance with factory quality standards, correct internal diameter, perfectly matched connectors, and appropriate material flexibility. This is particularly important in modern designs, where the cooling system operates under increased pressure and across a wide temperature range.

Benefits of using an original cooling hose

Using a hose dedicated to the W205 allows for the mitigation of common issues resulting from the use of aftermarket replacements with imprecise shapes or incorrect material hardness. The most important advantages include:

• stable coolant flow under high-temperature and engine load conditions,
• reduced risk of leaks at connections due to perfectly matched ends,
• maintenance of the factory cooling system geometry, which facilitates service and diagnostics,
• compatibility with original clamps, brackets, and mounts in the engine bay.

This component is particularly important in vehicles used in city traffic and on long routes, where frequent heating and cooling cycles can accelerate the wear of lower-quality hoses.

Product condition and service application

The offered hose comes from a used vehicle, making it an attractive service solution for users looking for original components at a reasonable price. A used cooling system component allows for maintaining the vehicle's factory specifications while reducing repair costs compared to new parts from an authorized dealership.

The hose is suitable both for the typical replacement of a worn section of the cooling installation and for major service work involving the removal of the engine, radiator, or other components, where it is necessary to restore the original routing of the lines.

Technical support and knowledge about the cooling system

To better understand the impact of cooling hoses on engine durability and the symptoms of overheating, it is worth checking out our guide on cooling system diagnostics and service: Engine cooling system – overheating, repair, and used radiators. The article helps assess when a hose replacement is justified and how to select the right components.

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as additional pipes, return hoses, or sections connecting to the radiator, check out the available parts in the Mercedes cooling system pipes and hoses category.