Brake Booster 357612107A for Volkswagen Jetta A2 1987-1992

Part Name : Booster, Vacuum Power Brake ; Master VAC Assembly, Servo freno
Part #. ：357 612 107A

Conditions: Brand new, High Quality

This Part Fits: 

Volkswagen Jetta A2 1.8l L4 1987-1992

 

 

Remarks: 
Custom design is available(based on drawings or sample).

 

What is Brake Booster and its function in vehicle ?   

 

The brake booster is designed to create a greater braking force from a minimum pedal effort, using a difference in atmospheric pressure and the engine’s manifold vacuum. It increases the pedal force 2 to 8 times depending on the size of the diaphragm. The brake booster is located between the brake pedal and the master cylinder.

When pressure is applied to the brake pedal, pressure is exerted on the booster air valve. With pressure created by the booster the master cylinder is applied. Should the booster malfunction, the normal mechanical braking force of the master cylinder is maintained.