Left.w/o code BR4. Left.w/o quadra lift. A flexible Hose, typically used on moving parts of a vehicle, which carries / delivers fluid to various components of the Braking system. A hydraulic Hose used between an abs pump and motor assembly and a Brake master cylinder. A solid tube, typically mounted to the chassis or frame, which carries / delivers fluid to various components of the Braking system. Exc.Air Suspension. Exc.Brembo Brakes. Hydraulic Line. tube. ABS Pressure. FLEXIBLE.