7 i I 5 gp x w E L Q I N Q V O RE V 4P 13009 I V 1983 88 B6 S7 BRAKE RELAY VALVE W JE4 4 646 1 BODY 4 N S 2 RING RETAINING N S 12 TUBE MODULATION N S 3 SCREW J N S 13 COVER BODY N S 4 WASHER 1 4 ID N S 14 BRACKET N S 5 DIAPHRAGM NOTE 1 1 N S 15 BOLT BRACKET N S 6 BODY EXHAUST VALVE N S 16 SEAT VALVE N S 7 O RING 1 11 16 ID NOTE 1 N S 17 O RING VALVE SEAT N S 8 SPRING SMALL NOTE 1 N S 18 BOLT HEX PRO LOC 3 8 16 X 7 8 I N S 9 O RING 7 8 ID NOTE 1 N S 19 O RING 3 359 ID NOTE 1 N S 10 RETAINER SEAL N S 20 PISTON N S 1 1 SEAL VALVE NOTE 1 N S 21 VALVE NOTE 1 N S 22 SCREW N S 23 SPRING LARGE NOTE 1 N S NOTE 1 PART OF 4 646 KIT RELAY VALVE REPAIR INCL ITEM 5 7 9 11 19 21 23 1987 GENERAL MOTORS SERVICE PARTS OPERATIONS M SB G 09 87 4G 71 4 000 GROUP