Audi A4 B8 A5 S5 8T Coolant Hose Pipe Tube Line 3.0 TFSI Petrol 8K0819342P

Audi A4 B8 A5 S5 8T Coolant Hose Pipe Tube Line 3.0 TFSI Petrol is an original component from the Cooling system hoses and pipes group, designed for 3.0 TFSI petrol engines in Audi A4 B8, A5, and S5 8T models. It ensures stable coolant flow within the engine unit, which translates into a safe engine operating temperature and predictable cooling system performance.

Specifications and technical data

• SKU: 8K0819342P
• Mark: Audi
• Condition: Used
• OEM Part Number: 8K0819342P
• Substitutable numbers: 8K0819342P, 8K0 819 342 P
• Fuel type: Petrol
• Part type: Hose
• Category: Coolant Hoses

Purpose and function in the cooling system

The presented coolant hose is a component dedicated to TFSI petrol engines, where precise coolant routing is crucial for the durability of the power unit. It is responsible for a tight and stable connection between selected cooling system components, minimizing the risk of leaks and pressure drops in the circuit. Thanks to its factory-fit design for the engine bay geometry of the Audi A4 B8, A5, and S5 8T, the hose maintains the correct routing, does not interfere with other components, and allows for proper coolant flow even during dynamic driving. This solution is particularly important in 3.0 TFSI units, which generate high thermal loads.

Original origin and installation fitment

As an Audi brand component, the coolant hose has been designed in accordance with the manufacturer's factory standards, which translates into the correct connector diameter, appropriate wall stiffness, and matched working length. The original geometry facilitates installation in the location intended by the vehicle manufacturer, without the need for modifications or the use of additional adapters. Such fitment limits stress in the system, reduces the risk of abrasion and cracking, and helps maintain the predictable behavior of the entire cooling circuit. For the user, this means stable engine operation, a lower risk of overheating, and easier diagnostics of potential faults in the future.

Characteristics of the used component

The offered hose comes from a used vehicle, which allows for combining an attractive price with the preservation of the manufacturer's original specifications. A used cooling system component, when properly verified before sale, is a reasonable choice for drivers who want to maintain the factory configuration of the 3.0 TFSI engine while avoiding uncertain replacements of unknown material quality. In practice, this means that the hose retains the proper flexibility and shape, and its operating parameters are close to factory standards. This is particularly important in modern petrol units, where temperature and pressure tolerances are strictly defined by the manufacturer.

Benefits of using an original coolant hose

Using an original coolant hose in an Audi A4 B8, A5, or S5 8T brings a number of practical benefits:

• maintenance of the factory coolant flow characteristics in the 3.0 TFSI engine,
• secure fitment to connectors and brackets in the engine bay,
• reduced risk of leaks compared to random replacements,
• easier installation due to the preservation of the original shape and diameters. For the user, this means more predictable operation, stable engine operating temperature, and a reduction in the risk of costly failures resulting from overheating.

Technical support and additional materials

If you are planning a comprehensive repair or upgrade of the engine area in your Audi and need other elements from the same group, such as additional hoses, return lines, or sections connecting to the radiator, check the available parts in the Audi cooling system hoses and pipes category. To better understand the importance of component quality in the cooling circuit and the differences between original elements and cheap replacements, it is worth reading the guide: Cooling system failure: why is an original used radiator a safer choice than a cheap replacement?. The article helps to assess how the selection of appropriate parts affects engine durability and operational safety.