Brand New Power Booster D9AZ2005A D9AZ2005B fits MERCURY MARQUIS 1979-1982

Part Name : Booster, Vacuum Power Brake ; Master VAC Assembly
Part #. ：D9AZ2005A, D9AZ2005B

Conditions: Brand new, High Quality

This Part Fits: 

FORD COUNTRY SQUIRE 1987
FORD LTD 1979-1982
FORD LTD CROWN VICTORIA 1983-1987
LINCOLN CONTINENTAL 1980
LINCOLN MARK VI 1980-1983
LINCOLN TOWN CAR 1981-1989
MERCURY COLONY PARK 1987
MERCURY GRAND MARQUIS 1979-1987
MERCURY MARQUIS 1979-1982

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.