Brake cylinders are key components in a vehicle’s braking system, primarily found in drum brake setups. They function by converting hydraulic pressure from the brake fluid into mechanical force, which pushes the brake shoes against the inner surface of the brake drum to create friction and slow the vehicle. There are two main types of brake cylinders: wheel cylinders, located in drum brakes at each wheel and master cylinders, which distribute brake fluid pressure to all wheels. A properly working brake cylinder is essential for responsive and even braking. Over time, brake cylinders can wear out or develop leaks, leading to reduced braking efficiency, spongy brake pedals or brake fluid loss. Regular maintenance and timely replacement are necessary to ensure the overall safety and performance of the braking system.