This ATE main brake cylinder, part number 03.4155-0156.3, is engineered to provide precise control over your vehicle's hydraulic braking system. As a critical component, the main brake cylinder converts the mechanical force applied to the brake pedal into hydraulic pressure, which then actuates the brakes at each wheel. A properly functioning cylinder is essential for safe and effective stopping power. Manufactured by ATE, a trusted name in braking technology, this component is designed for durability and consistent performance, ensuring your braking system operates as intended. Ensure your vehicle's braking system is in optimal condition with this high-quality main brake cylinder.