f 4P 15013 1983 88 B6 S7 BRAKE APPLICATION VALVE W JE4 MIDLAND 4 640 1 BOOT VALVE BODY Q 4 640 2 PLUNGER VALVE 4 640 3 BOLT MOUNTING N S 4 WASHER MOUNTING BRACKET BOLT N S V 5 BRACKET VALVE MOUNTING 4 640 6 RING PISTON NOTE 1 N S 7 RETAINER SPRING NOTE 1 N S 8 RING REACTION NOTE 1 N S 9 SPRING NOTE 1 N S I 10 RING VALVE PISTON 4 640 11 PISTON NOTE 1 N S 12 SEAL UPPER PISTON NOTE 2 4 640 13 SPRING NOTE 2 N S 14 BODY VALVE N S 15 BOLT UPPER TO LOWER VALVE BODY N S 16 O RING UPPER TO LOWER VALVE BODY NOTE 2 N S 17 VALVE UPPER EXHAUST NOTE 2 N S 18 SEAL UPPER EXHAUST VALVE NOTE 2 4 640 19 SPRING UPPER EXHAUST VALVE NOTE 2 N S 20 BODY IJPPER EXHAUST VALVE N S 21 O RING BODY TO PISTON NOTE 2 N S 22 O RING VALVE BODY NOTE 2 Q N S 23 RING EXHAUST VALVE SNAP 4 640 24 PISTON VALVE N S 25 SEAL LOWER PISTON NOTE 2 4 640 26 SPRING PISTON NOTE 2 N S 27 BODY I OWER VALVE N S 28 VALVE LOWER EXHAUST NOTE 2 N S 29 O R NG LOWER EXH VALVE TO EXH VALVE BODY NOTE 2 N S 30 SPRING LOWER EXHAUST VALVE NOTE 2 N S 31 SEAL AIR APPLICATION VALVE NOTE 2 4 640 32 BODY LOWER EXHAUST VALVE N S 33 DIAPHRAGM AIR APPLICATION VALVE 4 640 34 WASHER DIAPHRAGM RETAINER N S 35 SCREW WASHER PAN HEAD TAPPING N S 36 RING LOWER EXHAUST VALVE SNAP 4 640 NOTE 1 PART OF 4 640 PISTON AIR APPLICATION VALVE INCL ITEM 6 9 11 NOTE 2 PART OF 4 640 KIT A R APPLIC VLV REPAIFI INCL ITEM 12 13 16 19 21 22 25 26 28 31 K I 1987 GENERAL MOTORS SERVICE PARTS OPERATIONS M SB G 09 87 46 79 4 000 GROUP