Audi A3 8P FL TT 8J 1.8 Petrol CDAA Water Coolant Connection Hose 1K0133366BK

Audi A3 8P FL TT 8J 1.8 Petrol CDAA Water Coolant Connection Hose is a component from the Cooling system hoses and pipes group, designed for use in the cooling system of a petrol engine. It ensures stable coolant flow between components, which translates into a safe operating temperature for the power unit and predictable vehicle performance. This is a solution for users looking for a proven component with a design that meets Audi's factory standards.

Specifications and technical data

• SKU: 1K0133366BK
• Mark: Audi
• Condition: Used
• OEM Part Number: 1K0133366BK
• Substitutable numbers: 1K0133366BK, 1K0 133 366 BK
• Fuel type: Petrol
• Rim width: 8
• Category: Coolant Hoses

Purpose and function in the cooling system

The presented water radiator hose has been designed to work with a petrol engine, where maintaining a stable operating temperature is crucial. It is responsible for the controlled flow of coolant between system components, minimizing the risk of localized overheating and loss of cooling efficiency.

In practice, this means that a properly selected radiator hose supports:

• maintaining the optimal operating temperature of the power unit,
• stability of engine operating parameters in both city and highway conditions,
• reducing the risk of failures resulting from leaks or pressure drops in the cooling system.

Compatibility with the petrol unit

The hose is intended for use in Audi cars with a petrol engine, which ensures consistency with the thermal characteristics of this unit. Being dedicated to the petrol engine cooling system means appropriately selected geometry, connection diameters, and resistance to typical temperature and pressure ranges occurring in such designs.

As a result, the hose can be used as a replacement part in vehicles where it is required to maintain the original coolant routing and proper cooperation with other system components.

Performance characteristics and condition of the item

The offered hose comes from the used parts segment, which allows for an economical replacement while maintaining compliance with factory specifications. This type of component is a good choice when the existing hose shows signs of wear, material hardening, micro-cracks, or leaks at the connections.

Using an original part from disassembly allows you to maintain:

• factory fitment to nozzles and mounts in the engine bay,
• correct routing of the hose relative to other installations,
• consistency with the cooling system operating parameters specified by the vehicle manufacturer.

Importance for the durability of the cooling system

A functional water radiator hose has a direct impact on the thermal safety of the engine. Stable coolant flow reduces the risk of overheating, and thus potential damage to seals, the cylinder head, or other components exposed to high temperatures. Replacing a worn hose with a functional component is an important stage of service maintenance, especially in vehicles operated in varied road conditions.

The proper condition of cooling system pipes and hoses is particularly important during periods of increased thermal load, e.g., when driving in heat, in traffic jams, or during prolonged driving at higher speeds.

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 pipes, hoses, or coolant connections, check the available parts in the Audi cooling system hoses and pipes category.

To better understand how operating conditions affect the entire cooling system and when it is worth considering replacing elements with used ones, read the guide "Summer heat vs. cooling system: used radiators and fans as a guarantee of savings", which discusses the practical aspects of maintaining cooling system efficiency in demanding conditions.