Audi A4 B8 Vacuum Pipe Hose Line Tube 2.0 TDI Diesel 8K0820620B

Audi A4 B8 Vacuum Pipe Hose Line Tube 2.0 TDI Diesel is an original component from the Pipes, hoses and tubes group, designed for the vacuum system in diesel engines. It ensures stable vacuum delivery to the control valve, which translates into proper operation of engine accessories and consistent driving parameters. This solution is dedicated to 2.0 TDI Diesel units, designed in accordance with Audi brand standards.

Specifications and technical data

• SKU: 8K0820620B
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0820620B
• Substitutable numbers: 8K0820620B, 8K0 820 620 B, 03L 131 552 S, 03L131552S
• Fuel type: Diesel
• Category: Hoses, Lines & Pipes

Purpose and function in the vacuum system

The vacuum valve pipe in the Audi A4 B8 is responsible for the precise delivery of vacuum to pneumatically controlled components, such as actuators or control valves. In a diesel engine, stable vacuum is crucial for the proper operation of many components, which is why the tightness and correct diameter of the pipe have a direct impact on the engine's performance.

The original geometry of the pipe allows for correct routing in the engine compartment, maintaining factory mounting points. This minimizes the risk of chafing, kinking, and unwanted vibrations that could lead to a drop in vacuum or leaks.

Benefits of using an original Audi pipe

Using a vacuum valve pipe dedicated to the Audi A4 B8 with a diesel engine provides a number of practical benefits:

• maintaining the factory characteristics of the vacuum system,
• secure fit to existing brackets and routings in the engine compartment,
• reducing the risk of controller errors resulting from leaks or vacuum drops,
• easier diagnostics – the component corresponds to the factory solution, which facilitates the mechanic's work.

For the user, this means more predictable vehicle behavior, stable operation of engine accessories, and a lower risk of recurring faults related to the vacuum system.

Product characteristics and installation

The pipe belongs to the Pipes, hoses and tubes group, which are components responsible for transporting working media in the vehicle. In this case, the medium is the vacuum used in the diesel engine. The construction of the pipe is adapted to the conditions in the engine compartment – variable temperatures, vibrations, and contact with other mechanical elements.

The item is in Used condition, which means it comes from disassembly, and its performance parameters allow for further operation after proper installation. Replacing the pipe is a standard service operation and, provided installation procedures are followed, does not require any modifications to the installation or system alterations.

Why choose a used OEM part

In the case of components such as a vacuum valve pipe, choosing a used OEM part is often a reasonable compromise between cost and quality. The original pipe retains factory flow parameters and shape, which is particularly important in diesel engines where the vacuum system operates continuously. If you want to better understand when a used original part is a better choice than a replacement, check out the article 5 reasons why a used OEM part is a better choice than a replacement.

Expanding vacuum system service in Audi

If you are planning a comprehensive repair or upgrade of the engine area in your Audi and need other components from the same group, such as additional vacuum lines, supply hoses, or tubes for transporting working media, check out the available parts in the Audi pipes, hoses and tubes category.