Genuine OEM Volkswagen Brake servo, part number 3QF614106B. This essential braking component amplifies the force applied to the brake pedal, reducing the effort required to stop the vehicle. It operates by using engine vacuum to assist the master cylinder. Located between the brake pedal and the master cylinder. Manufactured to exact factory tolerances for consistent and reliable braking performance. Genuine OEM brake servos are critical for ensuring the safety and responsiveness of your vehicle's braking system.