Servo Unit

Servo Units, found within the Brake Controls section of a vehicle's braking system (Brakes > Brake Controls > Servo Unit), utilize engine vacuum or an electric motor to provide assistance to the brake pedal. This hydraulic assistance significantly reduces the force a driver needs to apply to achieve effective braking, improving safety and comfort. Commonly used in passenger cars and commercial vehicles, servo units amplify braking force, ensuring reliable stopping power. These units contain a diaphragm and piston assembly that responds to pedal pressure and engine vacuum. Examples in our catalog include servo units for MAN trucks, such as MPN 81.50301-0316, and units from Febi, like FEBI171381 and FEBI07073.