Master Cylinder

Master cylinders are a critical component of a vehicle's braking system, responsible for converting pedal force into hydraulic pressure. Located within the brake control system (Brakes > Brake Controls), the master cylinder pushes brake fluid through the lines to the calipers and wheel cylinders, enabling the vehicle to stop. These cylinders feature a reservoir to hold the brake fluid and are available in various bore sizes and configurations to suit different vehicle applications, from passenger cars to commercial vehicles. Common issues requiring replacement include leaks, a spongy brake pedal feel, or complete brake failure. Examples in our range include Bosch master cylinders (MPN 0204123643), and those from Febi, such as MPN FEBI40946 and FEBI12269, alongside options from AISIN like BMT-252.