Volkswagen Tiguan 5N Fuel Tank Return Pipe Line Hose Tube 5N0122447K

The fuel return hose for the tank for the Volkswagen Tiguan is an original part from the Hoses, pipes and tubes group, specifically designed for this model's fuel system. Thanks to its factory fit, it ensures stable medium flow and correct operation of the fuel system, which translates to safe vehicle operation. This solution is intended for users who expect a proven design and compliance with factory Volkswagen standards.

Specifications and technical data

• SKU: 5N0122447K
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 5N0122447K
• Substitutable numbers: 5N0122447K, 5N0 122 447 K
• Category: Hoses, Lines & Pipes

Purpose and Function in the Fuel System

This fuel return hose is responsible for draining excess fuel from the supply system back to the tank, stabilizing operating pressure and supporting the correct operation of the pump and injectors. The appropriately selected cross-section and geometry of the hose limit pressure drops and the risk of cavitation, which is important during dynamic driving and engine operation under load.

Original origin from the Volkswagen brand means maintaining the correct stiffness, flexibility, and resistance to fuel and typical thermal conditions in the engine bay and around the tank. This allows the hose to operate over a long period without uncontrolled deformation or leaks.

Construction and Mounting Fit

The hose has been designed as a dedicated component for the specific fuel system configuration in the Tiguan, taking into account the factory routing along the body and around the tank. The shape, length, and placement of the connection ends are adapted to the original mountings, which facilitates installation and reduces the need for any modifications.

In practice, this means:

• secure seating in original brackets and guides,
• correct positioning relative to other chassis and body components,
• minimized risk of abrasion and contact with moving parts.

This allows the hose to be integrated into the existing system without altering the vehicle's structure, which is particularly important for repairs carried out according to manufacturer guidelines.

Item Condition and Service Application

The offered hose is in used condition, making it a sensible alternative to new components while maintaining the original design specifications. This type of part is suitable for both standard fuel system repairs and for replacing a damaged hose after a collision or corrosion of other underbody components.

Choosing an original fuel return hose is particularly beneficial when you want to:

• maintain the factory geometry of the fuel system,
• reduce the risk of leaks resulting from ill-fitting aftermarket parts,
• maintain engine operating parameters in line with manufacturer specifications.

Technical Support and Additional Information

Before installation, it is advisable to verify the hose's compatibility with your specific Tiguan equipment version, using catalog data and manufacturer markings. The product has assigned identifiers such as SKU, OEM part number, and available interchangeable numbers, which facilitate unambiguous identification in service systems. Information about the condition and brand allows you to select a part that meets your expectations regarding the origin and history of the part.

If you want to better understand how properly designed hoses and pipes work with other vehicle system components, an article describing the influence of the cooling system on the durability of the powertrain might be helpful – you can find it here: Engine Cooling System – Overheating, Repair, and Used Radiators.

If you are planning a comprehensive repair or upgrade of the fuel system area in your Volkswagen and need other parts from the same group, such as flexible fuel hoses, rigid return pipes, or connecting sections near the tank, check the available parts in the Volkswagen Hoses, pipes and tubes category.