Volkswagen Arteon T-Roc Fuel Tank Filler Screw Cap Cover 3AA201653A

Visual condition of the part

The product shows signs of use visible in the photos.

Volkswagen Arteon T-Roc Fuel Tank Filler Screw Cap Cover is an original component from the Fuel tanks and filler pipes group, designed for the factory fuel system of Volkswagen vehicles. It ensures a tight seal for the filler neck, stabilizes pressure in the tank, and helps maintain the correct operating parameters of the engine fuel supply system.

Specifications and technical data

• SKU: 3AA201653A
• Mark: Volkswagen
• Condition: Used
• OEM Part Number: 3AA201653A
• Substitutable numbers: 3AA201653A, 3AA 201 653 A
• Category: Fuel Tanks & Filler Necks

Purpose and technical function

The presented fuel filler cap is designed as a component of the refueling system for Volkswagen Arteon and Volkswagen T-Roc models. Its task is to provide a controlled seal of the filler, limit fuel evaporation, and protect the filler neck from external contaminants, which translates into stable operation of the fuel system.

The original design ensures a proper fit to the factory filler neck, which minimizes the risk of leaks, accidental loosening, and problems with fuel system diagnostics (e.g., errors related to fuel evaporation).

Construction and functional features

The cap is a mechanical element that works with the threaded fuel filler neck. The tightening mechanism used allows for a secure closure with moderate force, and appropriately selected sealing materials help maintain tightness under typical road operating conditions.

Key advantages of this solution include:

• factory fit for the Volkswagen Arteon and T-Roc fuel system,
• stable mounting on the fuel filler neck,
• protection against dirt and moisture entering the filler area,
• support for the proper operation of the tank ventilation system.

Condition and service application

The offered cap comes from disassembly and is a used part, which makes it an attractive service alternative for drivers looking for original components at a reasonable price. This type of element is particularly useful when replacing a damaged, worn, or lost cap, when you want to maintain the factory specifications of the fuel system.

Using an original fuel filler cap helps reduce the risk of problems with leaks, improper closure, or error messages related to the fuel system, which may occur when using random replacements with uncertain parameters.

Technical support and selection by part numbers

The selection of a fuel filler cap for a specific engine version and vehicle model year should be based on catalog numbers and data from service documentation. In case of doubt, verification by Vehicle Identification Number (VIN) or consultation with the technical department is recommended to confirm full compatibility with a given car model.

If you want to better understand how the cap works with other components of the fuel supply system, it is worth checking out the guide describing the diagnostics, selection, and operation of fuel components – you can find it in the article Fuel system – injectors, pumps, and fuel tank: maintenance and regeneration.

Expansion of the fuel system in Volkswagen

If you are planning a comprehensive repair or upgrade of the fuel system area in your Volkswagen and need other elements from the same group, such as filler necks, fuel supply lines, or tank mounting elements, check the available parts in the Volkswagen fuel tanks and filler pipes category.

For drivers who are considering a wider replacement of components with original parts from disassembly, a practical guide to the used parts market may also be helpful – more information can be found in the material The best used car parts – a guide to the most frequently chosen original parts.