This copper ring for the brake system serves as a seal between brake line and brake component. The part fits the hydraulic system of the Citroën 2CV and supports stable pressure generation. The ring limits brake fluid leakage at connection points and contributes to consistent pedal feel. The copper adapts to the contact surfaces, which helps to close joints in a reliable way. The dimensions match brake lines with smaller outer diameter and corresponding seats. It is installed during maintenance, overhaul or replacement of worn sealing elements within the vehicle brake system.
