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Hydro-booster 1615662 22504711 22504712 for ELECTRA/ESTATE/LESABRE/RIVIERA 1980Part Name : Hydraulic Brake Booster; Hydro-booster
Part #. : 1615662, 22504711, 22504712, 527157Conditions: Brand new, OE replacement
This Part Fits:
BUICK ELECTRA 1980
BUICK ESTATE WAGON 1980
BUICK LESABRE 1980
BUICK RIVIERA 1980-1981
CADILLAC ELDORADO 1979-1981
CADILLAC SEVILLE 1980-1981
OLDSMOBILE TORONADO 1980-19815.7L 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.