i1 TG03 101 1987 1991 G E C M MODULE WIRING HARNESS NOTE OUANTITY IS ONE PER ASSEMBLY UNLESS OTI IERW SE SPECIFIED 1 3 671 RETAINER ECM PUSH ON PLASTIC 10027015 2 N S MODULE ENGINE CONTROL SERVICIED BY 3 670 CONTROLLER ECM REMANUFAC UFIED 1 1227747 1 3 670 CALIBRATOR PROM 1 16121433 3 670 CALPAK ECM 1 16060836 3 3 675 BOLT U NUT STUD M5XO 8X10 1987 89 AS REOD 12337892 I 14 865 BOLT ECM M5X 8X16 1990 91 IS REOD 12337892 4 2 525 HARNESS ENGINE ECM WIRING W 4 3 987 2 12070099 2 480 HARNESS ENGINE ECM WIRING W 5 0 5 7 1987 2 12069973 2 480 HARNESS ENGINE ECM WIRING W 5 7 N D8 1988 2 12062052 2 525 HARNESS ENGINE ECM WIRING W 5 7 I 40 1988 89 2 12062053 I 2 525 HARNESS ENGINE ECM WIRING W 7 4 IVI40 1988 89 2 12062059 I 2 525 HARNESS ENGINE ECM WIRING W 5 0 IVI40 1989 2 12083561 2 525 HARNESS ENGINE ECM WIRING W 5 7 NB3 1989 2 12062174 5 3 671 BRACKET ECM HOUS NG RH 15552876 6 3 671 BRACKET ECM HOUSING LH 15552875 I 7 8 917 NUT HEX W CON WA M5XO 8 M9 POR 11504614 8 3 671 HOUSING ELECTRONIC CONTROL MODULE 15604949 9 8 917 NUT HEX W CON WA M6X1 M9 PEOR 11508277 10 3 885 VALVE CRUISE VACUUM TRANS CONV RIELEASE W A TRNS MD8 1987 89 14074322 I 11 3 885 VALVE CRUISE CONTROL VACUUM RELEASE W M TRNS M40 A TRNS 1987 89 14074321 12 3 885 A RETAINER CRUISE CONTROL VACUUIM RELIEASE VALVE W M TRNS 10075405 I 13 8 977 SCREW HWH M4 2X 1 41X16 PZOR 11509135 14 2 483 PLATE ENGINE WIRING HARNESS RETAINER 14066651 15 3 671 RETAINER ECM WIRING HARNESS 14066610 16 8 915 NUT HEX M6X1X5 5 M9 PEOR 11507095 I 17 8 977 SCREW HWH M7 9X2 12X20 PHOS I 11500086 18 2 559 SHIELD ENGINE WIRING HARNESS 14066633 19 3 885 VALVE CRUISE CONTROL VACUUMRELEASE 1990 91 15628875 NOTE 1 SEE CATALOG FOR SPECIFIC USAGE I I I NOTE 2 ECM WIRING HARNESS IS PART OF ENGINE WIRINGHARNESS FOR MODEL YEARS NOT LISTED RPO DEFINITIONS NB3 EMISSION SYSTEM ABOVE 10000 LB GVW 1991 GENERAL MOTORS SERVICE PARTS OPERATIONS LT TRUCK 52G Li 1 91 3 1 3 000 GROUP I