Volkswagen Passat B6 Audi A3 8P Coolant Hose Pipe Line 3C0122051AT

Volkswagen Passat B6 Audi A3 8P Coolant Hose Pipe Water Radiator Hose is an original part from the Cooling System Hoses and Pipes group, designed for use in the engine cooling system. A used OEM part allows for a technically correct replacement of a worn hose, maintaining the factory geometry for coolant flow and proper fit to the radiator and engine spigots.

Specifications and technical data

• SKU: 3C0122051AT
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 3C0122051AT
• Substitutable numbers: 3C0122051AT, 3C0 122 051 AT
• Category: Coolant Hoses

Application and Function in the Cooling System

The presented water radiator hose is responsible for the stable flow of coolant between system components, which directly impacts maintaining the correct operating temperature of the power unit. Thanks to its factory profile and internal diameter, it ensures:

• proper coolant flow under various engine loads,
• correct positioning relative to other engine compartment components,
• reduced risk of leaks at connections to the radiator and engine block.

Using an original hose in the cooling system is particularly important in vehicles such as the Passat B6 or Audi A3 8P, where the installation geometry is precisely matched to the engine and accessory layout.

Benefits of Using an Original Radiator Hose

Using a used, original water radiator hose to replace a worn component allows for maintaining the operating parameters specified by the vehicle manufacturer. In practice, this means:

• factory fit to spigots and mounting brackets,
• correct hose routing without stress or twisting,
• limited risk of overheating resulting from improper fluid flow.

For the user, this translates to stable cooling system operation and the possibility of economical repair without compromising OEM part quality.

Professional Application in Volkswagen Passat B6 and Audi A3 8P

The hose has been designed with the specific engine compartment layout of the Volkswagen Passat B6 and Audi A3 8P models in mind. The appropriate length, shape, and support points of the hose allow for:

• clearance routing near the fan, radiator, and engine accessories,
• maintaining the correct bending radius in critical areas,
• preserving the ground clearance required by the vehicle manufacturer.

This allows the hose to be used for both standard operational replacements and post-collision repairs where restoring the original cooling system configuration is crucial.

Part Condition and Installation Aspects

The component comes from the used original parts segment, allowing for a combination of reasonable repair costs with the preservation of factory specifications. Before installation, standard workshop procedures are recommended, including checking the connection surfaces, mounting clamps, and leak-tightness after filling the system with coolant.

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

Technical Support and Additional Information

To better understand how the condition of hoses and pipes affects the thermal safety of the engine in high temperatures, it is worth reading the guide Summer Heat vs. Cooling System: Used Radiators and Fans Guarantee Savings, which describes the practical aspects of operating and selecting cooling system components.