1991 HEATER MODULE VIN PRODUCTION DIV CODE USAGE COL N0 52455514 4 N W ELEK HTR C40 1ST DES NOTE 1 1 52459589 4 N W ELEK HTFi C40 2ND DES NOTE 2 2 NOTE 1 1ST DES USES MODE ACTUATOR W MOLDED BRKT NOTE 2 2ND DES USED MODE ACTUATOR W SEPARATE SERVICE BRKT GROUP DESCRIPTION QTY 1 2 3 4 5 9 169 HEATER ASM 1 52455514 52459589 9 280 ACTUATOR ELEC AR 16124922 15124922 9 280 AC1 UATOR HTR DEFR VAC 1 1996780 1996758 9 280 ACTUATOR VAC MODE 1 1996778 1996686 9 280 BRACKET ACTR MT VAC MODE 1 3047738 9 280 BRACKET DEFR VAC ACTR MT 1 3057801 9 779 BUMPER 1 52452127 52452127 9 211 CASE EVAP 1 52455357 52455357 9 762 CLIP SHAFT RET 1 3090399 3090399 8 854 CORE HTR 1 3058622 3058622 8 854 COVER CORE 1 52455358 52455358 9 786 DUCT DEFR AIR 1 52455427 3053145 8 854 GASKET EVAP CASE 1 3056496 3056496 8 921 NUT M3 6 X 1 23 RD PUSH ON AR 11501937 8 854 SEAL 200 0X8 0X6 0 AR 3096726 3096726 8 845 SEAL EVAP CASE T0 SHROUD AR 3018179 3056004 8 854 SEAL MT 1 3056026 3056026 9 211 SEAL TUBE 8 MOUNT 1 52455593 52455593 9 211 SEAL VLV DEFR 1 3043555 3043555 9 779 SEAT VLV DEFR 1 3047022 3047022 9 786 SHAFT W LEVER 1 52455573 3095890 9 786 SHAFT W SPRING 8 BRACKET 1 52455558 52455558 9 211 SHROUD CORE 1 52455356 52455356 8 854 STRAP CORE MT AR 3056003 3056003 9 786 VALVE W SEAL MODE AR 52456215 52456215 9 779 VALVE DEFR 1 52452097 52452097 9 786 VALVE TEMP 1 3091077 3091077 T 1991 GENERAL MOTORS SERVICE PARTS OPERATIONS BUICK 44N 8 845 8 18 2 91