Hydro-booster 563874 R2772342 527127 for OLDSMOBILE CUTLASS CALAIS 1979

Part Name : Hydraulic Brake Booster; Hydro-booster
Part #. :  563874, R2772342, 527127, AA1527127, 14PB4134

Conditions: Brand new, OE replacement

This Part Fits:

OLDSMOBILE CUTLASS 1979
OLDSMOBILE CUTLASS CALAIS 1979
OLDSMOBILE CUTLASS SALON 1979
OLDSMOBILE CUTLASS SUPREME 1979

 4.3L 260Cu. In. V8 DIESEL OHV Naturally Aspirated

5.7L 350Cu. In. V8 DIESEL OHV Naturally Aspirated

 

Remarks: 

WITHOUT MASTER CYLINDER

 

What is Hydraulic brake booster (Hydro-booster) ?

Hydroboost brake units use power steering pressure instead of engine vacuum for brake assist. This is sometimes necessary if the engine does not create enough vacuum to assist the braking system. This is true for diesel, turbocharged, and supercharged engines. Some manufacturer's use an engine driven vacuum pump to operate the vacuum booster instead of a installing a hydroboost brake system.

A hydroboost unit is located between the firewall and the master cylinder, just like a vacuum booster. It has hydraulic lines leading from the power steering pump to the power steering gear, much like the lines incorporated into the power steering system. It uses a spool valve and power piston to regulate pressure. A spring loaded or nitrogen gas charged accumulator is used in case of a power steering system failure.