For 1990-2009 cars

Application | GM SPO Group Number
--- | ---
Brake and Clutch Cover | 4.626
Brake Cylinder and Hydraulic Line, Clip and Spacer | 4.685
Brake Hose or Pipe Bracket, Clip, Retainer and Spacer | 4.681
Brake Hose or Pipe Clip, Connector, Fitting, and Gasket | 4.686
Brake Master Cylinder Connector, Cover, Harness and Cover Kit | 4.651
Brake Master Cylinder Diaphragm | 4.650
Brake Master Cylinder Kit | 4.649
Brake Master Cylinder Secondary Piston | 4.653
Brake Pedal | 4.625
Brake Pressure Indicator Alarm, Connector, Gasket, Module and Switch | 4.874
Brake Pressure Regulator Bolt, Switch and Valve Kit | 4.690
Brake Warning Connector | 4.663
Master Cylinder Adjusting Nut and Retainer | 4.662
Power Brake Booster Clamp, Fitting, Hose, Nut and Seal | 4.845
Power Brake Booster Valve Kit | 4.810
Power Hydraulic Brake Booster Accumulator Kit | 4.820
Power Hydraulic Brake Booster Gasket | 4.805
Power Vacuum Brake Booster | 4.901
Power Vacuum Brake Booster Clip, Fitting and Plug | 4.931
Power Vacuum Brake Booster Reinforcement | 4.898
Power Vacuum Brake Booster Valve Kit | 4.955
Stop Lamp Switch | 2.447
Wheel Brake Hose | 4.680