Audi A6 C8 Engine Water Coolant Pipe Hose Cooling Line Tube 50 TFSIe 4K0819374AC

The Audi A6 C8 Coolant Hose Pipe Tube 50 TFSIe is an original cooling system component designed for precise coolant flow in a hybrid powertrain. Being an original Audi part, it ensures a perfect fit for the A6 C8 model and stable operation of the entire cooling circuit. This is a practical solution for users who want to maintain factory specifications and avoid leakage issues.

Specifications and technical data

• SKU: 4K0819374AC
• Mark: Audi
• Condition: Used
• OEM Part Number: 4K0819374AC
• Substitutable numbers: 4K0819374AC, 4K0 819 374 AC
• Part type: Hose
• Category: Coolant Hoses

Purpose and Function in the Cooling System

The presented hose belongs to the Cooling System Hoses and Pipes group, responsible for transporting coolant between key engine and auxiliary components. In the 50 TFSIe version, proper coolant flow is crucial for both the combustion engine and the hybrid system components.

The appropriately shaped pipe allows for:

• maintaining stable operating temperatures of the engine and auxiliaries,
• reducing the risk of overheating in urban and highway conditions,
• ensuring proper fluid circulation within the confined engine bay.

Benefits of Using an Original Audi Hose

Choosing a part from the original Audi line means preserving the geometry designed by the vehicle manufacturer. This is particularly important in modern designs where hose routing is precisely matched to other components.

The main advantages of using this hose include:

• factory-perfect fit for mounting points and connectors in the A6 C8 50 TFSIe model,
• maintaining the designed flow path and cross-section for coolant,
• reducing stress resulting from improper installation of universal aftermarket parts.

Performance Characteristics of a Used Element

The offered hose is a used part, representing a sensible compromise between repair cost and maintaining original quality. This type of part allows for an economical replacement of a damaged or leaking section of the cooling system while adhering to the original design.

In practice, this means the ability to:

• restore the coolant circuit's integrity after mechanical failure or wear,
• reduce service costs compared to new parts,
• maintain the original hose routing within the engine bay.

Technical Support and Additional Information

During periods of high temperatures, it is particularly important for the entire cooling system – including hoses, radiators, and fans – to operate stably. If you want to better understand how summer conditions affect the coolant circuit and when it's worth considering used components, read our guide: Summer Heat vs. Cooling System – Used Parts in Practice.

When planning repairs using dismantled parts, the material discussing the choice between refurbished and original used parts may also be helpful, available here: Refurbished vs. Used Original Part – A Practical Comparison.

Related Audi Cooling System Components

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