Audi A4 B9 A5 F5 1.4 TFSI Water Coolant Pipe Hose Line 8W0819350H

Audi A4 B9 A5 F5 1.4 TFSI Water Coolant Pipe Hose Line is an original cooling system component designed for the precise routing of coolant in the 1.4 TFSI engine. Thanks to its factory fitment for Audi A4 B9 and Audi A5 F5 models, it ensures stable cooling system performance and reduces the risk of leaks. This used OEM component is a sensible choice for drivers looking for a proven solution at an attractive price.

Specifications and technical data

• SKU: 8W0819350H
• Mark: Audi
• Condition: Used
• OEM Part Number: 8W0819350H
• Substitutable numbers: 8W0819350H, 8W0 819 350 H
• Category: Coolant Hoses

Purpose and function in the cooling system

This hose is part of the Cooling system pipes and hoses category, responsible for transporting coolant between specific components of the 1.4 TFSI engine. A correctly selected hose:

• maintains the tightness of the coolant circuit under the typical thermal loads of the 1.4 TFSI unit,
• ensures stable flow of the cooling medium, which supports maintaining the optimal engine operating temperature,
• minimizes the risk of overheating and a drop in cooling system efficiency.

The original geometry and connection diameters are adapted to the factory connectors in the Audi A4 B9 and Audi A5 F5, which facilitates trouble-free installation and proper cooperation with other system elements.

Advantages of using an original Audi hose

Using an original hose in the cooling system brings a number of practical operational benefits:

• Factory fitment – the hose was designed specifically for the architecture of the 1.4 TFSI engine in the Audi A4 B9 / A5 F5, which limits the need for modifications.
• Stable system operation – the correct cross-section and shape of the hose support even coolant flow under typical road conditions.
• Compatibility with OEM equipment – the hose works with factory clamps, connectors, and other cooling system components.
• Economical repair – a used part allows for lowering service costs while maintaining the characteristics of an original part.

Characteristics of the used component

The offered hose comes from disassembly and has the status of a used OEM component. This type of part is a good choice in situations where:

• the existing hose shows signs of wear, cracks, or leaks,
• a quick, budget-friendly repair of the cooling system is necessary while maintaining the original specification,
• you care about maintaining consistency with factory Audi solutions.

Before installation, it is recommended to perform a standard verification of the connection surface condition and check for leaks after installation, in accordance with service procedures for cooling systems.

Technical support and additional materials

To better understand the impact of efficient pipes and hoses on engine thermal safety during the summer season, it is worth checking out the guide on operating the cooling system in high temperatures: Summer heat vs. cooling system – used components and economical operation. The article discusses, among other things, the importance of proper coolant circulation and the role of individual components in protecting the power unit.

If you are planning a comprehensive repair or upgrade of the cooling system area in your Audi and need other elements from the same group, such as additional pipes, hoses, or connectors, check the available parts in the Audi cooling system pipes and hoses category.