GM04 241 6 A 050487 7 I V I1 3 9 FGEI 9 II I 9 Q I 1 mom Q I 2 4 1 16 5 0 U J 13 14 mm 15 10MM nam THREAD 1Q Q r 13MM gf THREAD I 11 Wk fl I MK A I 0 DM5077G001 X GM04 241 1986 1990 H BRAKE MASTER C YLINDER DELCO NOTE SEE PARTS CATALOG FOR MASTER CYLINDER CHART IN GROUP 4 650 1 4 651 SENSOR FLUID LEVEL 1 3 2 4 652 PROPORTIONER1 VALVE M CYL 1OMM 4 3 N S O RING 4 4 4 652 PROPORTIONEFI VALVE M CYL 13MM 5 5 N S O RING 5 4 6 4 651 COVER M CYL RESVR 1 I 7 4 651 DIAPHRAGM KIT M CYL RESVR 1 8 N S RESERVOIR 1 3 1 9 N S GROMMET RES VR 1 3 10 N S RING LOCI 1 2 11 N S PISTON PRIMAF1Y 1 2 12 N S SEAL SECONDARY 1 2 13 N S RETAINER SPRING 1 2 14 N S SEAL PRIMARY 1 2 15 4 653 PISTON M CYL SECD 1 16 N S SPRING 1 L V 17 N S BODY M CYL 1 NOTE 1 SERVICE MASTER CYLlNDER GROUP 4 650 INCLS 1 6 THRU 17 NOTE 2 REPAIR KIT GROUP 4 649 INCLS 10 11 12 13 14 NOTE 3 RESERVOIR GROMMET I IT GROUP 4 651 INCLS 1 8 9 NOTE 4 PROPORTIONER VALVE 1OMM GROUP 4 652 INCLS 2 3 NOTE 5 PROPORTIONER VALVE 1Z3MM GROUP 4 652 INCLS 4 5 L 1992 GENERAL MOTORS SERVICE PARTIS OPERATIONS BUICK 44H tY 4 92 4 131 4 000 GROUP