Cadillac,Buick,Pontiac, Isuzu Hydro-booster

#1615661

CADILLAC SEVILLE 1979

#1615663

CADILLAC DEVILLE 1979 CADILLAC FLEETWOOD 1979

#15126866, 15212479, 15854058

CADILLAC ESCALADE 2003-2006 CHEVROLET TAHOE 2003-2006 GMC YUKON XL 1500 2003-2006 (V8 5.3L-8.1L)

#15706056, 15757280

CADILLAC ESCALADE 2002 CHEVROLET TAHOE 2000-2002 HUMMER H2 2003-2004 (V6/V8)

15869824, 25676229, 25716198, 25749291

CADILLAC DTS 2006-2011

#25511547

BUICK RIVIERA 1982-1985 CADILLAC ELDORADO 1982-1985 CADILLAC SEVILLE 1982-1985 OLDSMOBILE TORONADO 1982-1985

#1615662, 22504711, 22504712

BUICK ELECTRA 1980 CADILLAC ELDORADO 1979-1981 CADILLAC SEVILLE 1980-1981 OLDSMOBILE TORONADO 1980-1981

#22504713

BUICK CENTURY 1981 BUICK REGAL 1981 OLDSMOBILE CUTLASS SUPREME 1980-1981 PONTIAC GRAND PRIX 1981

25511548

BUICK REGAL (1982 - 1985) CHEVROLET MALIBU (1982 - 1983) OLDSMOBILE CUTLASS SALON 1985 PONTIAC BONNEVILLE (1982 - 1984)

#1610031

CADILLAC COMMERCIAL CHASSIS 1976 CADILLAC ELDORADO 1976-1978 CADILLAC FLEETWOOD 1976

19286838

BUICK ELECTRA 1981-1985 CADILLAC FLEETWOOD 1980-1985 OLDSMOBILE DELTA 88 1981-1985 PONTIAC PARISIENNE 1981-1985

#22504711

PONTIAC BONNEVILLE 1980 PONTIAC PARISIENNE 1980 OLDSMOBILE DELTA 88 1980 CHEVROLET IMPALA 1980

12377114, 15762873, 15982025, 19168856, 19206594, 8157628730

ISUZU FSR (2000 - 2002) ISUZU FTR (2000 - 2009) ISUZU FVR (2000 - 2009) ISUZU FXR 2009

#1618765, 1620210

OLDSMOBILE 98 1981-1984 PONTIAC CATALINA 1981 CHEVROLET CAPRICE 1981-1985 CHEVROLET IMPALA 1981-1985

15192200

CADILLAC ESCALADE 1999-2000 CHEVROLET TAHOE 1995-2000 GMC C1500 PICKUP 1995-1999 GMC YUKON 1995-2000

19286753

CADILLAC ESCALADE 2003-2006 CHEVROLET TAHOE 2003-2006 GMC YUKON 2003-2006

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.