What brake system component is responsible for converting linear movement into hydraulic pressure?

The master cylinder is the brake system component that converts linear movement into hydraulic pressure. When the driver presses the brake pedal, this action creates linear movement. The master cylinder takes this movement and, using a piston mechanism, generates hydraulic pressure within the brake fluid. This pressure is then transmitted through the hydraulic lines to the brake calipers or wheel cylinders, activating the brakes at each wheel.

The effective conversion of force into hydraulic pressure is essential for the braking system to function properly, allowing for consistent and responsive braking performance. This process ensures that the effort applied by the driver through the brake pedal translates into a powerful yet controlled force that can effectively slow down or stop the vehicle.