Audi A4 S4 B8 S5 8T Radiator Coolant Hose Tube Pipe Line 8K0145923F

The Audi A4 S4 B8 S5 8T Coolant Hose is an original part from the Cooling System Hoses and Pipes group, designed for use in Audi vehicles. Thanks to its factory geometry and appropriately selected diameter, it ensures stable coolant flow and proper cooperation with other system components.

Specifications and technical data

• SKU: 8K0145923F
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0145923F
• Substitutable numbers: 8K0145923F, 8K0 145 923 F
• Part type: Hose
• Category: Coolant Hoses

Purpose and Function in the Cooling System

The coolant hose in Audi A4, S4 B8, and S5 8T models is responsible for the safe routing of coolant between system components such as the radiator, pump, and engine connections. The appropriately shaped hose path minimizes the risk of kinks, flow restrictions, and unwanted vibrations, which translates to stable engine operating temperature.

Selecting the correct hose is crucial for maintaining the proper pressure and efficiency of the cooling system, and thus for protecting the engine from overheating in both urban and highway conditions.

Benefits of Using an Original Audi Hose

Using an original Audi coolant hose ensures:

• precise fit to the connections and mounting points in the engine bay,
• appropriate material flexibility, reducing vibration transfer,
• stable shape retention at high operating temperatures,
• compatibility with factory clamps and mounting brackets.

This allows for smooth installation and significantly reduces the risk of leaks, drips, or rubbing against adjacent components. This solution is particularly beneficial for servicing vehicles used intensively, where predictable cooling system performance is paramount.

Professional Installation and Cooling System Diagnostics

When replacing the coolant hose, it is advisable to perform a full system check – inspect the condition of the radiator, pump, thermostat, and the quality of the coolant itself. This helps prevent the recurrence of problems related to overheating or reduced cooling efficiency. It is also good practice to bleed the system after installation to ensure even fluid circulation.

If you want to better understand how individual system components affect engine durability and how to recognize signs of overheating, the following guide will be helpful: Engine Cooling System – Overheating, Repair, and Used Radiators. This is a practical addition to your knowledge when planning service for your Audi.

Application Area and Selection of Parts from the Same Group

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 pipes, flexible return hoses, or sections connecting to the radiator, check the available parts in the Audi Cooling System Hoses and Pipes category.

Summary

The Audi A4 S4 B8 S5 8T Coolant Hose is the right choice for users who expect compliance with factory specifications and predictable cooling system performance. An appropriately selected hose supports stable engine operating temperatures, and its design facilitates installation and subsequent service, which is important for both daily use and long-term vehicle ownership.