The rear brake hose for a Citroën HY is an essential component of the braking system, responsible for transporting hydraulic brake fluid from the brake pedal to the rear brakes. This flexible hose is designed to withstand high pressure and frequent movement, ensuring reliable and safe braking performance. Regular inspections and replacements are crucial to maintain the integrity of the braking system and ensure a safe driving experience. With its design specifically for the Citroën HY, this hose perfectly fits the historical braking system of this classic van.