Audi A4 B8 A5 8T Intercooler Hose Cooler Pipe Line Tube 8K0145737R

The Audi A4 B8 A5 8T Intercooler Hose is an original boost system component designed for the Audi A4 B8 and Audi A5 8T models. It ensures a sealed and stable connection between the intercooler and other intake components, contributing to predictable engine operation and consistent performance. This is a practical solution for users seeking a factory fit without the need for modifications.

Specifications and technical data

• SKU: 8K0145737R
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0145737R
• Substitutable numbers: 8K0145737R, 8K0 145 737 R, 8K0145737T, 8K0 145 737 T
• Category: Other Air & Fuel Delivery

Purpose and Function in the Boost System

The intercooler hose in an Audi is responsible for transporting compressed air between the turbocharger, the charge air cooler, and the intake manifold. A correctly selected component:

• maintains appropriate boost pressure across the entire RPM range,
• limits pressure drops caused by leaks or hose deformation,
• supports stable engine operation under load,
• minimizes the risk of intake air overheating through proper airflow through the intercooler.

Thanks to its design aligned with factory specifications, the hose maintains the correct flow geometry, which is important for both daily driving and dynamic driving.

Original Fit and Compatibility

This part comes from the Audi group, meaning it retains the factory mounting points and is compatible with the original intake system in the A4 B8 and A5 8T. Original manufacturing ensures:

• secure fitment with the intercooler and other hose sections,
• no need for adapters or modifications,
• retention of the original hose routing in the engine bay.

This makes installation predictable and reduces the risk of interference with other components in the engine bay.

Performance Characteristics of a Used Part

The hose is offered in used condition, providing a sensible compromise between cost and functionality for everyday vehicles. In practice, this means the part comes from a dismantled vehicle, and its construction retains features typical of OEM parts, such as:

• factory geometry and internal diameter,
• suitability for operation under elevated temperature and pressure conditions,
• compatibility with standard clamps and mountings.

For many users, this is a cost-effective solution for boost system repairs, especially when maintaining the vehicle's original specifications is a priority.

Benefits of Using an Original Intercooler Hose

Using an intercooler hose dedicated to the Audi A4 B8 and A5 8T helps to mitigate common problems associated with leaks and improper fitment of aftermarket alternatives. Key advantages include:

• stable boost parameters due to maintaining the original hose diameter and length,
• lower risk of leaks compared to random aftermarket parts of uncertain origin,
• easier intake system diagnostics – the component corresponds to factory service diagrams,
• consistency with other Audi intake system components.

For workshops and DIY users, this means predictable installation and the ability to use standard service procedures.

Technical Support and Related Materials

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 intake hoses, boost pipes, or additional boost system sections, check the available parts in the Other Audi category.

For users interested in the design differences between sport versions and standard models, an article describing the construction of engines, brakes, and chassis may be useful – details can be found in the material Audi RS vs. Other Models – What Lies Under the Hood and Chassis?.

If you want to better understand how the boost system interacts with all-wheel drive in this brand's cars and when it's worth opting for used components, the guide xDrive, 4Matic, quattro, or 4Motion – A Comparison of AWD Systems from BMW, Mercedes, Audi, and VW will be helpful.