Audi R8 42 Spyder Fuel Filler Tank Cover Cap Neck Screw Panel 420809900

Audi R8 42 Spyder Fuel Filler Flap Cap Hose Cover is an original part from the fuel filler flaps and caps group, designed for use in the Audi R8 42 generation Spyder model. It is a complete cover with a flap, cap, and fuel filler hose, allowing for professional repair of the refueling system after mechanical or operational damage.

Specifications and technical data

• SKU: 420809900
• Mark: Audi
• Condition: Used
• OEM Part Number: 420809900
• Substitutable numbers: 420809900, 420 809 900
• Part type: Fuel Tank Cap
• Category: Fuel Tank Caps

Intended Use and Function of the Part

The presented cover with flap, cap, and fuel filler hose has been specifically designed for the Audi R8 42 Spyder construction. It is responsible for safely guiding fuel from the filler neck to the tank, while also ensuring a tight seal of the filler neck and protecting the port from dirt and moisture.

Combining several components into one assembly simplifies servicing and reduces the risk of leaks resulting from incorrect selection of individual parts. This allows for the restoration of the entire fuel filler area's proper function in a single operation.

Set Construction and Benefits of Installation

The set includes key components of the refueling area – from the outer flap, through the cap, to the fuel-carrying hose. This solution ensures:

• structural consistency – all components are factory-matched, which facilitates installation and reduces the need for additional modifications,
• stable mounting – proper hose routing and correct flap seating minimize stress and the risk of cracks during operation,
• maintaining fuel system seal – a correctly selected cap and hose help maintain the system's proper operating parameters, including correct ventilation,
• protection of the filler port – the cover and flap limit the ingress of dirt, road salt, and moisture into the refueling area.

Condition, Quality, and Operational Safety

The part is from a disassembly, which allows for maintaining factory fit to the Audi R8 42 Spyder body. A used original part is a sensible choice when aiming to preserve the construction in line with the manufacturer's design, while optimizing repair costs.

For parts such as fuel filler flaps and caps, maintaining a seal and proper hose routing is particularly important. Using an original assembly reduces the risk of fuel evaporation issues, diagnostic errors related to the fuel system, or improper flap closure.

Selection by Numbers and Integration with the Fuel System

When selecting a cover with flap, cap, and fuel filler hose for the Audi R8 42 Spyder, it is crucial to compare the OEM part number and interchangeable numbers with the vehicle's data. This allows for confirming full compatibility with the specific body version and year.

If you want to better understand how this assembly works with other fuel supply system components, it is worth consulting a guide describing the operation of the entire system. Practical information on diagnostics, selection by VIN/OEM, and operation can be found in the article “Fuel System – Injectors, Pumps, and Fuel Tank: Maintenance and Repair”, which helps to view the part replacement in the context of the entire fuel system.

Alternative Audi Fuel Filler Flaps and Caps

If you are looking for other configurations or mounting variants, you can check out other Audi fuel filler flaps and caps available in our offer. You can find a full list of products in this category here: Audi fuel filler flaps and caps. This will allow you to easily compare different solutions and choose the part best suited to your specific vehicle.