T4B 54 5 1985 1986 CK BRAKE BOOSTER HYDRAULIC BENDIX 1987 1991 RV BRAKE BOOSTER HYDRAULIC BENDIX I 4 820 ACCUMULATDR KIT INCLUDES ITEM 2 4 4 I 612590 2 N S O RING ACCUM 1 4 v 3 N S RING SPOOL VALVE PLUG RET 2 4 N S PLUG SPOOL VALVE 2 5 N S 0 RING SPOOL VLV PLUG 1 2 6 N S SPRING SPOOL VALVE 2 7 N S HOUSING BOOS 2 8 4 815 SCREW W LK WA HSG TO CVR 471740 9 4 810 SEAL BOOS RTN PIPE FTG 1 15547030 10 4 810 VALVE KIT ACCUM 465227 11 4 845 FITTING RTN LINE 360855 12 N S VALVE SPOOL 2 13 4 810 SEAL PEDAL ROD INPUT 2 15583086 14 N S SEAL HSG 1 2 15 4 815 COVER BOOS HSG CK3 RV3 2 3 471735 16 4 805 BRACKET MT 14009748 17 4 805 NUT MOUNTING BRKT 360858 18 4 659 BOOT PEDAL ROD CK1 2 RVI 2 I 14075230 19 N S GROMMET PEDAL ROD 2 20 4 658 ROD PEDAL CK3 RV3 2 345683 N S ROD PEDAL CK1 2 RV1 2 SERV BY SERV BOOSTER 2 Z1 4 810 PIN INPUT PSTN 345667 Z2 4 658 ROD W PSTN BOOS INPUT CK3 RV3 ALSO INCLS 13 I4 19 20 23 14055058 23 N S SEAL PSTN 1 24 4 805 STUD BOOS TO M CYL MT 14009755 25 4 659 RETAINER OUTPUT PUSH ROD 345673 26 4 810 SPRING PSTN RTN 471736 27 N S RETAINER PSTN RTN SPR 2 28 4 659 BAFFLE OUTPUT ROD SPR 360859 29 4 65B ROD OUTPUT PUSH 377397 30 N S SEE SERVICE KITS BELOW SERVICE KITS KIT 1 4 805 BOOSTER SERVICE CK3 RV3 W JB8 2 14055057 yl 2 4 805 BOOSTER SERVlCE CK RV1 2 W JD3 JD5 JD6 JD7 15521935 3 4 658 ROD KIT W PISTON BOOS INPUT SGL SEAL TYPE CI 1 2 RV1 2 15536869 4 4 658 ROD KIT W PISTON BOOS INPUT DUAL SEAL TYPE CKI 2 RV1 2 15536868 5 4 820 ACCUMULATOR KIT ALSO LISTED AS ITEM 1 1612590 6 4 810 VALVE KIT ALSO LISTED AS ITEM 10 465227 NOTE 1 SEAL KIT PWR BOOS 4 810 INCL ITEMS 2 5 9 I4 18 23 27 22506440 FOR CK1 2 RV1 2 W JD3 JD5 JD5 JD7 SEAL KIT 465226 FOR CK3 R 3 NOTE 2 BOOSTER HYD PWR 4 805 INCL ITEMS 3 7 12 I5 19 20 27 15521935 CK1 2 RV l 2 W JD3 JD5 JD6 JD7 FOR PROD BOOS 14066428 NOTE 3 NOT SERVICED SEPARATELY FOR ALL MODELS SEE CHART IN GROUP 4 805 RPO DEFINITIONS JB8 BRAKE HYD POWER DISC DRUM 10 000 LBS JD3 BRAKE HYD POWER DISC DRUM 4300 LBS JD5 BRAKE HYD POWER DISC DRUM 5400 LBS JDS BRAKE HYD POWER DISC DRUM 7200 LBS JD7 BRAKE HYD POWER DISC DRUM 8400 LBS 1990 GENERAL MOTORS SERVICE PARTS 0PERATl0NS LIGHT TRUCK 52R 9 90 4 155 4 000 GROUP