Audi A4 B8 A5 8T 2.0 TDI Air Intake Duct Pipe Tube Hose 8K0129739B

Audi A4 B8 A5 8T 2.0 TDI Air Intake Hose is an item from the Hoses, pipes and tubes category, designed for the intake system in 2.0 TDI diesel engines. The original Audi design ensures stable air flow to the intake system, promoting smooth engine operation and reducing the risk of leaks.

Specifications and technical data

• SKU: 8K0129739B
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0129739B
• Substitutable numbers: 8K0129739B, 8K0 129 739 B
• Part type: Pipe
• Category: Hoses, Lines & Pipes

Purpose and Function in the Intake System

The air intake hose is responsible for directing the aspirated air from the intake system to further components of the 2.0 TDI engine in Audi A4 B8 and Audi A5 8T models. A correctly selected and sealed hose limits pressure drops, helps maintain stable turbocharging parameters, and supports uniform cylinder filling.

Thanks to its factory geometry and precise fit for the specific engine bay, this component minimizes the risk of rubbing against adjacent sub-assemblies, which translates to a longer lifespan for the entire intake system and more predictable engine behavior.

Advantages of Using an Original Audi Hose

Using an original intake hose in the Audi A4 B8 and A5 8T 2.0 TDI allows for the preservation of factory air flow parameters. Compared to aftermarket alternatives with uncertain geometry, the original component ensures:

• precise fit to the factory mountings and brackets in the engine bay,
• stable air stream management across the entire load range,
• reduced risk of micro-cracks and leaks in critical areas,
• better compatibility with other intake system and turbocharging components.

This solution promotes the maintenance of proper vehicle dynamics and helps reduce power loss resulting from leaks or improper airflow.

Characteristics of a Used Part

The offered hose belongs to the group of used original parts, meaning it comes from a dismantled vehicle and retains the original Audi construction. For many users, this represents a sensible compromise between cost and quality, allowing for the preservation of the original intake system specifications without the need to resort to cheaper, unverified aftermarket parts.

For intake hoses, it is particularly important that the part is not excessively deformed and retains its proper rigidity and flexibility in areas intended by the manufacturer. A used, original hose often better meets these requirements than new components of unknown origin.

Selection and Compatibility in Service Practice

When selecting an air intake hose for the Audi A4 B8 or A5 8T 2.0 TDI, it is crucial to rely on manufacturer data and part numbers to avoid installation and fitment issues. The original part from the Hoses, pipes and tubes category has been designed specifically for the engine bay geometry of these models, ensuring a smoother installation and reduced risk of collision with other components.

This approach is particularly important in workshops specializing in the Audi brand, where repair result consistency, predictable vehicle behavior after service, and the ability to easily verify part compliance with manufacturer technical documentation are paramount.

Expanding the Intake System in Audi

If you are planning comprehensive intake system service for your Audi and are also interested in other parts from the hoses, pipes, and tubes category for this brand, check the available parts in the Audi Hoses, pipes and tubes category.

For users considering broader use of parts from dismantling, an interesting addition to your knowledge might be an article describing the benefits of choosing used components – you can find more information in the material on the advantages of using used parts in premium cars.