4P 26004 1983 87 B6 VACUUM POWER CYLINDER W JE3 W HI PERFORMANCE DELCO MORAINE JM7 4 901 1 KIT VACUUM CHECK VALVE INCL GROMMET VALVE 4 810 2 KIT ELBOW FITTING INCL GROMMET El BOW FITTING CAP 4 810 3 SEAL FRONT HOUSING NOTE 1 N S 4 KIT CONTROL VALVE 4 810 5 SEAL DOUBLE LIP NOTE 1 N S 6 RING POWER PISTON LOCK N S 7 RETAINER REACTION N S 8 SLEEVE CONTROL VALVE N S 9 PLATE VALVE REACTION N S 10 LEVER VALVE REACTION N S 11 SPRING AIR VALVE N S 12 RETAINER AIR VALVE SPRING N S f 13 RING EXTERNAL RETAINER N S 14 PISTON POWER Q 4 810 15 HOUSING ASM FRONT POWER HEAD N S 16 SPRING RETURN N S 17 KIT HOUSING CLAMP INCL BOLT NUT 4 810 18 SUPPORT DIAPHRAGM N S 19 DIAPHRAGM POWER PISTON 1 4 922 I 20 HOUSING ASM REAR POWER HEAD N S 21 BEARING POWER PISTON PRIMARY NOTE 1 N S 22 VALVE ASM AIR N S I 23 SEAL O RING NOTE 1 N S I 24 ROD PUSH N S 25 VALVE ASM FLOATING CONTROL NOTE 1 N S 26 SPRING CONTROL VALVE N S 27 RETAINER CONTROL VALVE SPRING NOTE 1 N S 28 RETAINER FLOATING CONTROL VALVE NOTE 1 N S 29 KIT BOOT INCL BOOT FI LTER SILENCER 4 810 NOTE 1 PART OF 4 901 K T VACUUM POWER HEAD REPAIR INCL ITEM 3 5 2 1 23 25 27 28 T 1 1987 GENERAL MOTORS SERVICE PARTS OPERATIONS M SB G 09 87 4G 149 4 000 GROUP