The fuel cap is a part of the car that is used regularly and is therefore subject to high wear and tear. Contamination is one of the main reasons why it needs to be replaced: dirt can cause the seals to break or promote rust formation, for example. febi has numerous fuel caps in its range for this purpose: vented or unvented, with a key or chain. Careful selection. When replacing the cap, it is important to choose the right one. The thread and diameter must match the fuel tank connection, and the valve should correspond to the pressure specified for your vehicle. The febi range includes fuel caps in various diameters for an optimal fit and quick repair.