Genuine BOSCH Wheel Brake Cylinder
Part number JB3147

In a car, a brake wheel cylinder plays a crucial role in the braking system. It is a hydraulic component located in each wheel, responsible for applying force to the brake shoes or pads. The cylinder consists of a piston and a cylinder housing. When the brake pedal is pressed, hydraulic brake fluid is transferred to the wheel cylinder, causing the piston to move outward. As the piston moves, it applies force to the brake shoes or pads, causing them to press against the brake drum or rotor, and ultimately slowing down or stopping the vehicle. The brake wheel cylinder plays a vital role in converting the hydraulic pressure from the brake master cylinder into mechanical force to bring the car to a halt safely.

Furthermore, the brake wheel cylinder is designed with seals and rubber boots to prevent any leakage of brake fluid. These seals ensure that the pressure created by the hydraulic system is maintained, allowing for efficient and reliable braking performance. The wheel cylinders also have bleed valves to release any air that may become trapped in the system, ensuring that the brakes function optimally. Overall, the brake wheel cylinder is an essential component in the car's braking system, responsible for translating the force from the brake pedal into the braking power needed to stop the vehicle effectively and safely.