B4 46 1976 79 T BRAKE VACUUM BOOSTER CYLINDER 6 1 HOSE Vacuum Mas Vac to Int lVlfId 8 962 2 PIPE Vacuum ll las Vac Hose 4 930 3 HOSE Vacuum I1 las Vac to Pipe 8 962 4 CLIP Mas Vac Int Mfld to Vac Hose 4 931 5 SPACER I las Vac to Dash Pnl 4 898 6 GASKET Mas Vac to Spacer 4 910 7 INSULATOR 4 930 8 NUT Hex M8 x 1 25 8 915 9 WASHER Lk IVl8 I 8 931 10 CYLINDER ASM Brake Booster Incl Key No 11 32 4 901 11 ROD ASM Valve Note 1 N S 12 PLATE Diaphragm 4 922 13 DIAPHRAGM ASM Note 1 N S 14 KEY Valve Rod Stop 4 918 15 RETAINER 4 918 16 FILTER Note 1 N S 17 SILENCER Note 1 7 N S 18 SHELL Rear w Stud 4 906 19 SEAL Valve Body Note 1 N S 20 BEARING Note 1 N S 21 RETAINER Note 1 N S 22 SHELL Front 4 906 23 SEAL ASM W Plate Note 1 N S 24 RETAINER Note 2 4 906 25 ROD ASM Push 4 924 26 DISK Reaction Note 1 N S 27 SPRING 4 924 28 GUARD Valve Body Note 1 N S 29 CLEVIS Yoke 4 662 30 NUT Hex Clevis to Mas Vac 4 662 31 GROMMET Check Valve Note 1 N S 32 VALVE Check Note 2 4 955 33 CLIP Vacuum Hose 4 930 34 REPAIR PKG Brake 4 898 NOTE I Serviced by HEPA R PKG bra ce master vac on y 4 898 NOTE 2 A so nc uded in HEPA H PKG brake master vac 4 8 98 GM PARTS DIVISION GENERAL MOTORS COFIPORATION BUICl 41A Y I 9 80 T4 19 4 000 GROUP