What part of the brake system converts hydraulic pressure to mechanical force?

The part of the brake system that converts hydraulic pressure to mechanical force is the wheel cylinder. The wheel cylinder is located at each wheel and it plays a crucial role in the braking process. When hydraulic fluid from the master cylinder is forced into the wheel cylinder, it moves pistons within the cylinder outward. This outward movement causes the brake shoes or pads to press against the brake drum or rotor, creating the friction needed to slow down or stop the vehicle.

This process is fundamental to hydraulic brake systems, allowing for effective and responsive braking by utilizing the principles of hydraulic force magnification. Understanding this conversion is essential for diagnosing and effectively working with brake systems in automotive maintenance and repairs.