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Power Boosters

Master Power Brakes sells power boosters for Buick, Chevrolet, Edsel, Ford, Mercury, Oldsmobile, Pontiac, and Street Rod applications. Power boosters use vacuum produced by your engine to assist in the application of force to the master cylinder. When you step on the pedal, a valve on the firewall side of the booster opens, allowing atmospheric pressure in. A hub assembly in the booster transfers this force to the master cylinder.

Browse all power boosters.

Example of single diaphragm power booster:

Example of Mopar manual drum/drum master cylinder

 

Example of dual diaphgram power booster:

Example of GM power disc/disc master cylinder

Customers generally ask:

1. What size power booster will I need?
2. What is a dual diaphragm power booster?
3. Will I need a special booster for four wheel disc brakes?
4. What makes and models do you have power boosters for?

1. What size power booster will I need?
Since the size of the power booster will determine the amount of assist, the weight of your vehicle and the type of brakes you have will factor into this equation. A heavy vehicle needs a larger booster than a lighter one and disc brakes require more pressure than drum.

2. What is a dual diaphragm power booster?
A dual diaphragm power booster allows you to decrease the size of the booster and still have adequate assist. The amount of power assist that a booster produces is proportional to the diameter of the booster. The larger the booster can, the more assist it will produce. To reduce the size of the booster can, engineers came up with a dual diaphragm design. The use of two diaphragms produces significantly more assist than a single, thus allowing a smaller design.

3. Will I need a special booster for four wheel disc brakes?
A four wheel disc brake system will require more pressure than a disc/drum system. Generally speaking, a dual diaphgram booster will be needed for four wheel disc brakes.

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4. What makes and models do you have power boosters for?
We offer power boosters for the following makes, models and years:

Buick  
Apollo 1973, 1974, 1975
Gran Sport 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972
Skylark 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972
Special 1964, 1965, 1966, 1967, 1968, 1969
 
Chevrolet  
Camaro 1967, 1968, 1969
Chevelle 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972
Corvette 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982
El Camino 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972
Malibu 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972
 
Edsel  
Full Size Car 1958, 1959, 1960
 
Ford  
Fairlane 1957, 1958, 1959, 1960, 1961
Full Size Car 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972
Galaxie 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972
Mustang 1964, 1965, 1966
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Mercury  
Full Size 1952, 1953, 1954, 1955, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972
 
Oldsmobile  
442 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972
Cutlass 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972
F85 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972
Omega 1973, 1974, 1975, 1976, 1977, 1978, 1979
 
Pontiac  
Firebird 1967, 1968, 1969, 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990
Grand Prix 1969, 1970, 1971, 1972
GTO 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972, 1973
LeMans 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1971, 1972
Tempest 1964, 1965, 1966, 1967, 1968, 1969, 1970
Ventura 1971, 1972, 1973, 1974, 1975, 1976, 1977
 
Street Rod Any year.

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