J GM4 84 000 0 0000 000 00 A I an J I n rl 0 0 I pj l 1 m5 g l umm I I IZ IA V 0 1 llllllllllm Q l I 1 1 I W A I 0 0 0 ZM 0 GM4 84 1980 81 A B C E DIESEL BRAKE HYDRAULIC BOOSTER 1 BOOT 5 6 N S j 2 NUT 1 6 N S 3 BRACKET W Stud 6 N S 4 COVER Housing 1 6 N S 5 SEAL H0usIng 1 2 3 5 6 N S 6 PISTON ACCUMULATOR Power 3 6 N S 7 VALVE Spoo 6 N S 8 HOUSING 6 N S 9 O RING 5 6 N S 10 FITTING Return Port 6 N S 11 SLEEVE Spool VaIve 6 N S 1 2 SPRING Spool Return 6 N S 13 O RING Spool PIug 4 5 6 A N S 14 PLUG SpooI 4 6 N S 15 RETAINER Spool PIug 4 6 N S 16 0 RING 5 6 N S 17 ROD Output 6 N S 18 SEAL Piston 1 2 3 5 6 N S 19 BOLT Housing 6 N S 20 SPRING Power Piston Return 6 N S 21 RETAINER SprIng 6 N S N NOTE 1 Part Of Grp 4 810 COVER KIT Pwr Brk Booster Input Seal NOTE 2 Part Of Grp 4 810 PISTON KIT W Hsg Pwr Brk Booster NOTE 3 Part Of Grp 4 810 PISTON ACCUMULATOR KIT Pwr Brk Booster NOTE 4 Part Of Grp 4 810 SEAL Spool Plug Pwr Brk Booster NOTE 5 Part Of Grp 4 810 SEAL KIT Pwr Brk Booster NOTE 6 Part Of Grp 4 805 BOOSTER Hyd Pwr Brk 4 1987 GENERAL MOTORS SERVICE PARTS OPERATIONS OLDSMOBILE 31A 4 000 GROUP 4 144 7 87