Brake Booster

The power brake booster is a self-contained, vacuum/hydraulic unit which uses engine manifold vacuum and atmospheric pressure to provide its power.

Vacuum power unit contains power piston assembly, which houses control valve, reaction mechanism and return spring. Control valve consists of air valve, floating control valve assembly and push rod. Reaction mechanism consists of reaction plate and levers. A vacuum check valve is mounted in front housing for connection to vacuum source.