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Audi A4 B7 1.9 TDI Water Hose Cooling Coolant Radiator Pipe Line 038121071S
SKU: 038121071S
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Condition:
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Audi A4 B7 1.9 TDI Water Hose Cooling Coolant Radiator Pipe Line is a component from the Cooling system hoses and pipes group, designed for 1.9 TDI diesel engines in the Audi A4 B7 generation. This used hose allows for an economical yet technically sound repair of the coolant circuit, while maintaining the proper operating parameters of the power unit.
Specifications and technical data
- SKU: 038121071S
- Mark: Audi
- Condition: Used
- OEM Part Number: 038121071S
- Substitutable numbers: 038121071S, 038 121 071 S
- Fuel type: Diesel
- Category: Coolant Hoses
Purpose and function in the cooling system
The presented coolant hose is a component of the system responsible for transporting fluid between diesel engine subassemblies, which has a direct impact on stabilizing the operating temperature. A properly selected hose ensures a leak-free flow of the medium, reduces the risk of localized overheating, and supports uniform heat dissipation from the engine block and cylinder head.
Thanks to a design tailored to the geometry of the Audi A4 B7 engine bay, the hose maintains the appropriate rigidity and bending radii, which minimizes stress and the risk of abrasion during operation. This is particularly important in diesel units, where thermal and pressure loads are higher than in many gasoline engines.
Benefits of using an original hose in a diesel system
In a compression-ignition engine, maintaining a stable operating temperature is crucial, which is why using a hose designed for a specific 1.9 TDI configuration allows you to:
- maintain proper coolant circulation across the full RPM range,
- reduce the risk of leaks resulting from mismatched diameters and shapes,
- preserve the factory routing of the hose in the engine bay,
- reduce thermal loads on adjacent accessory components.
Such a fit translates into stable cooling system operation, which is significant for both the durability of the power unit and the comfort of daily use.
Used condition and repair cost-effectiveness
The item is offered in used condition, which allows for a significant reduction in repair costs compared to purchasing a new part, while maintaining dimensional and mounting compatibility with the factory Audi solution. For many owners of vehicles with diesel engines, this is a reasonable compromise between price and functionality, especially during comprehensive service work on older model years.
If you want to better understand how a properly functioning cooling system affects the lifespan of a power unit and what symptoms may indicate overheating, it is worth reading the article: Engine cooling system – overheating, repair, and used radiators. This is a practical supplement to your knowledge when planning service work on your car.
Support for selecting and expanding the Audi cooling system
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 lines, hoses, or coolant pipes, check out the available parts in the Audi cooling system hoses and pipes category.
When purchasing used cooling system components, it is also worth learning the general principles of optimizing service costs and making informed choices regarding second-hand parts – this is discussed in more detail in the guide: rising repair costs and the boom in used parts – how to save on car maintenance. This will make it easier for you to plan your repair in a technically sound and economically justified manner.
Delivery details
Ship to: United Kingdom
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Estimated delivery dates include sellers dispatch time, origin postcode,destination postcode and time of acceptance, and will depend on the postage service selected and receipt of cleared payment. Delivery times may vary, especially during peak periods.
Will usually dispatch within same working day if paid before 14:00 BST (excludes weekends and holidays). Expected dispatch time may vary and is based on sellers order cut-off time.
In the automotive store Global Parts, we offer fast and secure deliveries for our customers in United Kingdom, ensuring maximum compliance with local service standards. Each order is processed with the utmost attention, guaranteeing a fluid shopping process and a timely delivery. If you need assistance in choosing the right part, our team of consultants will be happy to help you find the right part for your vehicle and provide information on installation, availability and parameters of the selected components.











