1990 HEATER N ODl ILE NOTE A01 IMPELLERS MAYBE REPLACED BY A PRESS ON TYPE IMPELLER THAT REOUIRES A NEW CORRESPONDING BLOWER MOTOR NOTE AO2 BLOWER MOTORS MAYBE REPLACED BY ONE THAT REQUIRES A PRESS ON TYPE IMPELLER VIN PRODUCTION DIV CODE USAGE COL NO 52450921 1 J W HTR C41 1 GROUP DESCRIPTION OTY 1 2 3 4 5 8 845 HEATER ASM 1 52450921 9 280 ACTUATOR I TR AIR DUCT VAC 1 1996686 9 280 ACTUATOR VAC 1 1996758 9 280 BRACKET ACTR VAC MT 1 3057801 9 280 BRACKET MODE VLV ACTR 1 3047738 9 779 BUMPER 1 524521 27 9 211 CASE CLIP W SEAL EVAP 1 3091016 9 762 CLIP SHAFT RET AR 3090399 8 854 CORE HTR 1 30586122 8 854 COVER 1 52457387 9 779 DUCT DEFR 1 3053145 9 786 l EVER W LINK SLAVE AR 3053003 9 786 LINK MODE VLV ADJ SLV 1 3047157 8 921 NUT M3 6 X 1 23 RD PUSH ON 1 11501937 8 845 SEAL EVAP CASE T0 SHROUD AR 3018179 9 211 SEAL EVAP CORE TO CASE 1 3043555 8 854 SEAL HTR CORE 2 3096726 8 854 SEAL MT 1 3056026 8 854 SEAL TUBE NUT 1 52451087 9 779 SEAT VLV 0EFR 1 30470122 9 786 SHAFT W BRKT MODE VLV SPRING 1 3050962 9 779 SHAFT W LVR DEFR 1 3095890 8 854 SHROUD CORE 1 3055305 8 854 STRAP CORE MT AR 3056003 9 779 VALVE OEFR 1 52452097 9 786 VALVE TEMP 1 3091077 9 786 VALVE W SEAL MODE 1 3047784 j 1993 GENERAL MOTORS SERVICE PARTS OP ERATIC NS CHEVROLET 17 1 j 4 93 8 19 8 845