VW Tiguan 7N Seat Leon Cupra 5f Audi A3 8V Fuel Line Hose Tube Pipe 06K133986EB

VW Tiguan 7N Seat Leon Cupra 5f Audi A3 8V Fuel Line Hose Tube Pipe is an original component from the Lines, hoses and pipes group, designed for precise fuel delivery in modern VAG group petrol engines. This used OEM component ensures factory-fit, stable fuel system pressure, and safe engine operation in daily use.

Specifications and technical data

• SKU: 06K133986EB
• Mark: Seat
• Condition: Used
• OEM Part Number: 06K133986EB
• Substitutable numbers: 06K133986EB, 06K 133 986 EB
• Category: Hoses, Lines & Pipes

Purpose and function of the fuel line

The described fuel line is a component of the fuel system used in VW Tiguan 7N, Seat Leon Cupra 5f, and Audi A3 8V models. Its task is to provide a tight and stable connection between individual sections of the fuel installation, ensuring that fuel is transported at the correct pressure from the tank and pump towards the fuel rail.

Thanks to a design compliant with the vehicle manufacturer's requirements, the line works with factory quick-connectors, brackets, and guides in the engine bay. This reduces the risk of leaks, pressure drops, and improper injector operation, which directly affects the engine's performance and fuel consumption.

Construction and fitment for VW, Seat, and Audi models

The line has been designed as an OEM component, meaning its geometry, connection diameters, and routing correspond to the factory requirements for the listed models. This facilitates installation in original mounting points without the need for modifications or the use of adapters.

Such fitment is particularly important in higher-power cars, such as the Seat Leon Cupra, where the fuel system operates under greater load. A properly routed line minimizes vibrations, protects against abrasion, and ensures stable supply parameters even during dynamic driving.

Benefits of using an original fuel line

• Factory fitment for the fuel system of the VW Tiguan 7N, Seat Leon Cupra 5f, and Audi A3 8V.
• Compatibility with original connectors and brackets in the engine bay.
• Stable fuel delivery and reduced risk of leaks.
• No need for system modifications when replacing the component.
• Consistency with other components from the Lines, hoses and pipes group.

As an OEM segment part, the line allows for maintaining the consistency of the entire fuel system with factory service documentation. This facilitates diagnostics, future inspections, and potential repairs in both authorized and independent service centers.

Condition, verification, and practical application

The item is offered as a used fuel line, which in practice means it has been removed from a vehicle and verified for further use. This type of part is a good solution for repairs where maintaining the original specification while optimizing costs is key.

Before installation, standard service procedures are recommended: visual inspection for mechanical damage, checking the quick-connector sockets, and ensuring proper seating in factory brackets. A correctly installed line restores proper fuel system operation and eliminates typical symptoms of damage, such as the smell of fuel in the engine bay or starting issues.

Part selection by OEM number and technical support

When selecting a fuel line for a specific engine version, it is worth using the OEM number and vehicle data to avoid errors resulting from differences in equipment or model year. In case of doubt, comparing the shape and type of connectors with the component currently installed in the car is helpful.

For users interested in a broader context of selecting original components and the principles of using OEM numbers when purchasing used parts, an article describing a practical approach to identifying elements in the Audi range may be useful – you can find it here: Audi five-cylinder engine – legend and selection of original Audi parts.

If you are planning a comprehensive repair or upgrade of the fuel system area in your Seat and need other components from the same group, such as flexible hose sections, rigid pipes, or additional supply branches, check the available parts in the Seat lines, hoses and pipes category.