BRAKES 6 7 4 872 SPRING AIR GOVERNOR 4 4940 NOTE REFER TO AIR COMPRESSOR CHART 4 874 SWITCH LOW AIR PRESSURE INDICATOR 7 6323 NOTE REFER TO GRP 2 930 SWITCHES 4 874 SWITCH LOW VACUUM 7 6328 NOTE REFER TO GROUP 2 930 SWITCHES 83 84 1 15500679 4 X 2 W DELCO MORAINE HI PERF HYD BRK BOOS 8487 4 876 BULKHEAD AIR BRAKE HOSE OR LINE CONNECTING 4 6377 83 88 AR AR 317058 4 X 2 THRU FRAME RAIL FROM BRK APPLICATION VLV TO FRT BRK QUICK REL VLV SPLY PART IS A CONNECTING LINE WHICH INCLS BUSHING NUT WASHER COMBINATION W NUT IS 3 4 16 THD BUSH IS 1 4 18 DRY SEAL BOTH ENDS 1 17 32 LG REPL 2491365 205465 4 895 PUMP VACUUM 4 2500 83 88 1 2055756 8 2N 8 2T MIDLAND W HYD BRK W IKVT ALTERNATOR MOUNTED FOR 1987 REPL 2063517 C 20422 4 895 ADAPTER VACUUM PUMP 4 2501 83 1 2063518 8 2N 8 2T M18 X 1 5 MALE END W M12 0 HOSE M41 0 LG C 13755 D 83 1 2063520 8 2N 8 2T M10 X 1 5 MALE END 1 4 18 FEMALE END M34 40 LG C 13755 C 83 1 2063522 8 2N 8 2T M22 X 1 5 MALE END 3 8 18 FEMALE END M23 80 LG C 13755 B 4 895 HOSE VACUUM PUMP OIL FEED 4 2501A 83 88 AR AR 8885526 8 2N 8 2T W HYD BRK 3 16 ID X 25 FT ROLL CTL REPL 2031593 2041631 8885549 4 895 HOSE VACUUM PUMP OIL RETURN 4 2501B 8384 AR AR 2467491 8 2N 8 2T W HYD BRK 1 2 OD X 3 4 OD 25 FT ROLL CTL 85 88 1 2050372 8 2N 8 2T W HYD BRK 1 2 ID X 32 INCH LG REPL 2056937 4 895 LINE OIL VACUUM PUMP 4 2526M 83 88 AR AR 3733220 8 2N 8 2T OIL RTN W HYD BRK 1 2 OD X 035 WALL X 10 FT CTL STL 4 895 PLATE VACUUM PUMP END 4 2537 83 88 1 2055469 8 2N 8 2T MOUNTING ADAPTER W HYD BRK USED W IKVT ALTERNATOR MOUNTED FOR 1987 4 895 WASHER VACUUM PUMP 4 2590 83 1 2063519 8 2N 8 2T ADAP M18 150 ID X 24 00 OD X 1 50 THK C 13268 AC 83 1 2063523 8 2N 8 2T M22 150 ID X 26 00 OD X 1 50 THK C 13268 AB 4 900 BOLT VACUUM PUMP BRACKET OR SUPPORT 4 2510K 83 AR 8 2N 8 2T ADAP PLT TO ALT M6 X 1 X 20 M 10 9 REF 11503867 PRO LOC 83 84 AR 11503869 8 2N 8 2T TO ADAP PLT M6 X 1 X 20 M10 9 STL 4 900 NUT VACUUM PUMP 4 2527 83 84 AR 11507095 8 2N 8 2T W HYD BRK M6 X 1 M9 STL REPL 11503739 4 901 BOLT VACUUM CYLINDER 4 1881 83 1 14063759 8 2N 8 2T PWR HD TUB CLIP W HYD BRK M6 X 1 X 13 M9 8 STL REPL 11500413 4 902 VALVE SAFETY BRAKE 4 3660 83 88 1 1 278383 4 X 2 BENDIX FRT AIR TANK SAFTY VLV PRESS SETTlNG 1 4 PIPE THD 3 1 4 LG 3 4 HEX OPT W 2303913 284 142 83 88 1 1 15535951 4 X 2 MIDLAND FRT AIR TANK SAFTY VLV OPT W 278383 REPL 2303913 1 10718 1987 GENERAL MOTORS SERVICE PARTS OPERATIONS M SB M 4872 4 902 4 112 N S reference only Added this issue MAY BE AS REQUIRED PART REV 9 87