This rubber element on the filler neck acts as a seal between filler neck and bodywork on a Citroën 2CV. The part limits fuel leakage around the filling opening and supports a fixed position of the filler neck. The rubber material reduces movement and vibration of the filler neck during operation of the vehicle. The product fits a specific version of the 2CV and matches the diameter and shape of the filler neck. The dimensions allow installation according to general guidelines for this vehicle type and connect to common fuel system layouts used on this model.
