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Radiator

Part Number: 52493406
Supersession(s): 21406; 52453863; 03091026; 52463453; 52451334

Radiator - Repair or Replace
Typical symptoms for a failed radiator include both an overheating engine and a coolant leak. But some radiator failures can also result in burned or dark transmission fluid. If the cooling system in your needs attention, contact a factory-trained technician.

RADIATOR ASM Diagram
#001
Required:
(KC4); (L26/4.9B); (L27); (L27/3.8L); (L67); (L67,KC4); (LG6/3.1D); (V92); (V92,Y67)
CSR: REMINDER PACKAGE(LOW FUEL,ENGINE HOT,LOW COOLANT,BRAKE WARNING,LOW OIL PRESSURE,LOW WASHER FLUID) REMINDER PKG(Y67); REMINDER PACKAGE(LOW FUEL,ENGINE HOT,LOW COOLANT,LOW OIL PRESSURE) VEHICLE INTEGRITY REMINDER PKG(Y67); WARNING,LOW COOLANT CLNT WRNG(U38)
ECG: COOLING SYSTEM,ENGINE OIL ENG OIL CLG(KC4); OIL COOLER,ENGINE ENG OIL COOLER(KPS)
ENG: ENGINE GAS, 6 CYL, 3.8K, MFI, V6, HO (ERV6 SERIES) 3.8K(L36); ENGINE GAS,3.8L(3.8-1),SFI,V6,SUPERCHARGED 3.8-1(L67); ENGINE GAS,8 CYL,4.6L,V8,DOHC,SFI,(281C.I.D.)(NORTHSTAR) 4.6-6/Y(LD8); ENGINE GAS,8 CYL,4.6L,V8,DOHC,SFI,(281C.I.D.)(NORTHSTAR) 4.6Y(LD8); ENGINE,(3.8L)(SFI)V6,HO,231CID 3.8L(L27); ENGINE,2.3L(2.3D),L4(DUAL OVERHEAD CAM) 2.3D(LD2); ENGINE,2.3L(2.3G),L4(DUAL OVERHEAD CAM)(U-VAN)(EXPORT) 2.3G(LD2)(EXPORT); ENGINE,3.1L(3.1D),V6,TBI 3.1D(LG6); ENGINE,4.6L,V8,DOHC,SFI,281C.I.D.(NORTHSTAR) 4.6-9/S(L37); ENGINE,4.9L(4.9B),V8(MFI) 4.9B(L26); ENGINE,5.0L(5.0E),V8(T.B.I) 5.0E(L03); ENGINE,5.0L(5.0H),V8(T.B.I.) 5.0H(L03); ENGINE,5.0L,V8(T.B.I) 5.0(L03); ENGINE,5.7L(5.7-7)GAS 8 CYLINDER 5.7-7(L05); ENGINE,5.7L,TBI 5.7K(L05)
HTR: AIR CONDITIONER,FRONT,ELECTRONIC CONTROLS A/C FRT ELEC CONT(C67); AIR CONDITIONER,HEATER COMBINATION FRT & RR HTR & A/C(C34); HEATER,OUTSIDE AIR,WITH FAN(ELECTRONIC CONTROLS) HTR W/FAN & ELEC CONTROLS(C40); HEATER,OUTSIDE AIR,WITH FAN(ELECTRONIC CONTROLS)(EXPORT) ELEC HTR(C40)(EXPORT)
OTHER: COOLING SYSTEM,HEAVY DUTY HVY DUTY CLG(V08)
PLT: PLANT CODE DETROIT, MI, BOC DETROIT PLANT CODE(DET)
RAD: RADIATOR,COPPER COPPER RAD(VSJ)
RAT: TRANSAXLE,FINAL DRIVE,2.84 RATIO 2.84R(F17); TRANSAXLE,FINAL DRIVE,2.84 RATIO(EXPORT) 2.84R(F17)(EXPORT); TRANSAXLE,FINAL DRIVE,2.97 RATIO 2.97R(F79); TRANSAXLE,FINAL DRIVE,2.97 RATIO(USED WITH TOURING PKG WF1) 2.97R(F79); TRANSAXLE,FINAL DRIVE,3.06 RATIO(USED WITH GRAN TOURING PKG Y56) 3.06R(FW2); TRANSAXLE,FINAL DRIVE,3.06 RATIO(USED WITH TROFEO SPORT COUPE WL3) 3.06R(FW2)
SGS: POLICE CAR SEO POLICE CAR(9C1)
SSP: SUSPENSION SYSTEM,FRONT AND REAR,HEAVY DUTY HVY DUTY SUSP(FE7); SUSPENSION SYSTEM,FRONT AND REAR,HEAVY DUTY(PERFORMANCE TUNED)(USED WITH INDY "GT" PKG B5I,GTZ Z04) HVY DUTY SUSP(FE7); SUSPENSION SYSTEM,FRONT AND REAR,HEAVY DUTY(USED WITH PERFORMANCE HANDLING PACKAGE Z51) HVY DUTY SUSP(FE7); SUSPENSION SYSTEM,SOFT RIDE SOFT RIDE SUSP(FE1); SUSPENSION SYSTEM,SOFT RIDE(USED WITH RS PACKAGE Y86) SOFT RIDE SUSP(FE1); SUSPENSION,FIRM RIDE HANDLING,FRONT AND REAR FIRM RIDE & HANDLING SUSP(F41); SUSPENSION,FIRM RIDE HANDLING,FRONT AND REAR(USED W/TOURING PKG WF1) FIRM RIDE & HANDLING SUSP(F41); SUSPENSION,FIRM RIDE HANDLING,FRONT AND REAR(USED WITH GRAN TOURING PKG Y56) FIRM RIDE & HANDLING SUSP(F41)
TPK: TRAILER PROVISIONS TRLR PROVISIONS(V92)
RADIATOR,(CORE SIZE 30 5/16IN X 17 3/16IN X 7/8IN, CODE FT, H2, M7, M8, HB)(ACDelco #21406). Required: 01
RADIATOR,(CORE SIZE 30 5/16IN X 17 3/16IN X 7/8IN, CODE MC)(ACDelco #21406). Required: 01
RADIATOR,(CORE SIZE 30 5/16IN X 17 3/16IN X 7/8IN, CODE MC, CC)(ACDelco #21406). Required: 01
RADIATOR,(CORE SIZE 30 5/16IN X 17 3/16IN X 7/8IN, CODE MC,CC,CO)(ACDelco #21406). Required: 01
For: C (1985-1993) (1991 - 1993).
For: C (1991-1991) (1991 - 1991).
For: C (1992-1993) (1992 - 1993).
For: CX 3.8L(L27),TRLR PROVISIONS(V92),(EXC REMINDER PKG(Y67) (1991-1991) (1991 - 1991).
For: CX 3.8L(L27),TRLR PROVISIONS(V92),(EXC REMINDER PKG(Y67) (1992-1993) (1992 - 1993).
For: E 4.9B(L26) (1991-1991) (1991 - 1991).
For: E 4.9B(L26) (1992-1993) (1992 - 1993).
For: E 4.9B(L26) (1994-1994) (1994 - 1994).
For: H 3.8L(L27),TRLR PROVISIONS(V92) (1992-1993) (1992 - 1993).
For: H 3.8L(L27),TRLR PROVISIONS(V92),(EXC REMINDER PKG(Y67) (1992-1993) (1992 - 1993).
For: HX 3.8L(L27),3.8-1(L67),TRLR PROVISIONS(V92) (1992-1993) (1992 - 1993).
For: K 4.9B(L26) (1991-1991) (1991 - 1991).
For: K 4.9B(L26) (1992-1993) (1992 - 1993).
For: KD 4.9B(L26) (1994-1995) (1994 - 1995).
HOSES & PIPES/RADIATOR Diagram
#009
Required:
; (L27); -V6
CSR: CLUSTER INST, OIL, COOL TEMP, TRIP ODOM, TACH, DR INFO CTR, COMPASS, SUPERCHARGED GA CSTR(U2F); CLUSTER,INSTRUMENT(OIL,COOLANT TEMPERATURE,TACHOMETER,VOLTMETER,TRIP ODOMETER,COMPASS,DRIVER INFORMATION CENTER) GA CSTR(U50); REMINDER PACKAGE(LOW FUEL,ENGINE HOT,LOW COOLANT,BRAKE WARNING,LOW OIL PRESSURE,LOW WASHER FLUID) REMINDER PKG(Y67); REMINDER PACKAGE(LOW FUEL,ENGINE HOT,LOW COOLANT,LOW OIL PRESSURE) VEHICLE INTEGRITY REMINDER PKG(Y67)
ECG: OIL COOLER,ENGINE ENG OIL COOLER(KPS)
ENG: ENGINE GAS,3.8L(3.8-1),SFI,V6,SUPERCHARGED 3.8-1(L67); ENGINE,(3.8L)(SFI)V6,HO,231CID 3.8L(L27)
RAT: TRANSAXLE,FINAL DRIVE,2.84 RATIO 2.84R(F17); TRANSAXLE,FINAL DRIVE,2.84 RATIO(EXPORT) 2.84R(F17)(EXPORT); TRANSAXLE,FINAL DRIVE,3.06 RATIO(USED WITH GRAN TOURING PKG Y56) 3.06R(FW2); TRANSAXLE,FINAL DRIVE,3.06 RATIO(USED WITH TROFEO SPORT COUPE WL3) 3.06R(FW2)
TPK: TRAILER PROVISIONS TRLR PROVISIONS(V92)
RADIATOR,(CORE SIZE 30 5/16IN X 17 3/16IN X 7/8IN, CODE MC)(ACDelco #21406). Required: 01
RADIATOR,(CORE SIZE 30 5/16IN X 17 3/16IN X 7/8IN, CODE MC, CC)(ACDelco #21406). Required: 01
RADIATOR,(CORE SIZE 30 5/16IN X 17 3/16IN X 7/8IN, CODE MC,CC,CO)(ACDelco #21406). Required: 01
For: C (1991-1991) (1991 - 1991).
For: C (1992-1993) (1992 - 1993).
For: CX 3.8L(L27),TRLR PROVISIONS(V92),(EXC REMINDER PKG(Y67) (1991-1991) (1991 - 1991).
For: CX 3.8L(L27),TRLR PROVISIONS(V92),(EXC REMINDER PKG(Y67) (1992-1993) (1992 - 1993).
For: H 3.8L(L27),TRLR PROVISIONS(V92) (1992-1993) (1992 - 1993).
For: H 3.8L(L27),TRLR PROVISIONS(V92),(EXC REMINDER PKG(Y67) (1992-1993) (1992 - 1993).
For: HX 3.8L(L27),3.8-1(L67),TRLR PROVISIONS(V92) (1992-1993) (1992 - 1993).
HOSES & PIPES/RADIATOR-V8 4.9L Diagram
#011
Required:
(4.9B)(L26)
ENG: ENGINE,4.9L(4.9B),V8(MFI) 4.9B(L26); ENGINE,5.0L(5.0E),V8(T.B.I) 5.0E(L03); ENGINE,5.0L(5.0H),V8(T.B.I.) 5.0H(L03); ENGINE,5.0L,V8(T.B.I) 5.0(L03); ENGINE,5.7L(5.7-7)GAS 8 CYLINDER 5.7-7(L05); ENGINE,5.7L,TBI 5.7K(L05)
OTHER: COOLING SYSTEM,HEAVY DUTY HVY DUTY CLG(V08)
RADIATOR,(CORE SIZE 30 5/16IN X 17 3/16IN X 7/8IN, CODE FT, H2, M7, M8, HB)(ACDelco #21406). Required: 01
For: C (1985-1993) (1991 - 1993).
RADIATOR MOUNTING & RELATED PARTS Diagram
#004
Required:
CSR: REMINDER PACKAGE(LOW FUEL,ENGINE HOT,LOW COOLANT,BRAKE WARNING,LOW OIL PRESSURE,LOW WASHER FLUID) REMINDER PKG(Y67); REMINDER PACKAGE(LOW FUEL,ENGINE HOT,LOW COOLANT,LOW OIL PRESSURE) VEHICLE INTEGRITY REMINDER PKG(Y67)
ECG: OIL COOLER,ENGINE ENG OIL COOLER(KPS)
ENG: ENGINE GAS, 6 CYL, 3.8K, MFI, V6, HO (ERV6 SERIES) 3.8K(L36); ENGINE GAS,3.8L(3.8-1),SFI,V6,SUPERCHARGED 3.8-1(L67); ENGINE,(3.8L)(SFI)V6,HO,231CID 3.8L(L27)
RAT: TRANSAXLE,FINAL DRIVE,2.84 RATIO 2.84R(F17); TRANSAXLE,FINAL DRIVE,2.84 RATIO(EXPORT) 2.84R(F17)(EXPORT); TRANSAXLE,FINAL DRIVE,3.06 RATIO(USED WITH GRAN TOURING PKG Y56) 3.06R(FW2); TRANSAXLE,FINAL DRIVE,3.06 RATIO(USED WITH TROFEO SPORT COUPE WL3) 3.06R(FW2)
RES: RESTRAINT SYSTEM,FRONT SEAT INFLATABLE DRIVER SI INFL RST SYS(AJ3); RESTRAINT SYSTEM,FRONT SEAT,INFLATABLE,DRIVER AND PASSENGER DRIVER & PASS F/SEAT INFL RST SYS(AK5)
TPK: TRAILER PROVISIONS TRLR PROVISIONS(V92)
RADIATOR,(CORE SIZE 30 5/16IN X 17 3/16IN X 7/8IN, CODE MC)(ACDelco #21406). Required: 01
RADIATOR,(CORE SIZE 30 5/16IN X 17 3/16IN X 7/8IN, CODE MC,CC,CO)(ACDelco #21406). Required: 01
For: C (1992-1993) (1992 - 1993).
For: H 3.8L(L27),TRLR PROVISIONS(V92) (1992-1993) (1992 - 1993).
RADIATOR MOUNTING & RELATED PARTS Diagram
#004
Required:
CSR: REMINDER PACKAGE(LOW FUEL,ENGINE HOT,LOW COOLANT,BRAKE WARNING,LOW OIL PRESSURE,LOW WASHER FLUID) REMINDER PKG(Y67); REMINDER PACKAGE(LOW FUEL,ENGINE HOT,LOW COOLANT,LOW OIL PRESSURE) VEHICLE INTEGRITY REMINDER PKG(Y67)
ECG: OIL COOLER,ENGINE ENG OIL COOLER(KPS)
ENG: ENGINE GAS, 6 CYL, 3.8K, MFI, V6, HO (ERV6 SERIES) 3.8K(L36); ENGINE GAS,3.8L(3.8-1),SFI,V6,SUPERCHARGED 3.8-1(L67); ENGINE,(3.8L)(SFI)V6,HO,231CID 3.8L(L27)
TPK: TRAILER PROVISIONS TRLR PROVISIONS(V92)
RADIATOR,(CORE SIZE 30 5/16IN X 17 3/16IN X 7/8IN, CODE MC, CC)(ACDelco #21406). Required: 01
For: CX 3.8L(L27),TRLR PROVISIONS(V92),(EXC REMINDER PKG(Y67) (1992-1993) (1992 - 1993).
RADIATOR MOUNTING & RELATED PARTS Diagram
#004
Required:
ENG: ENGINE,5.0L(5.0E),V8(T.B.I) 5.0E(L03); ENGINE,5.0L(5.0H),V8(T.B.I.) 5.0H(L03); ENGINE,5.0L,V8(T.B.I) 5.0(L03); ENGINE,5.7L(5.7-7)GAS 8 CYLINDER 5.7-7(L05); ENGINE,5.7L,TBI 5.7K(L05)
OTHER: COOLING SYSTEM,HEAVY DUTY HVY DUTY CLG(V08)
RADIATOR,(CORE SIZE 30 5/16IN X 17 3/16IN X 7/8IN, CODE FT, H2, M7, M8, HB)(ACDelco #21406). Required: 01
For: C (1985-1993) (1991 - 1993).
SHEET METAL/FRONT END Diagram
#023
Required:
CHP: WHEELBASE-137" 137 IN W/B(FWD)
DRL: HEADLAMPS,AMBER(EXPORT) AMBER HDLP(T75)
ENG: ENGINE,4.9L(4.9B),V8(MFI) 4.9B(L26); ENGINE,5.7L(5.7-7)GAS 8 CYLINDER 5.7-7(L05); ENGINE,5.7L,TBI 5.7K(L05)
HDL: HEADLAMPS,LH RULE OF THE ROAD(EXPORT) HDLP(T72)(EXPORT); HEADLAMPS,LH RULE OF THE ROAD,RECTANGULAR(MARKED E)(EXPORT) LH RULE OF ROAD HDLP(T85); HEADLAMPS,RH RULE OF THE ROAD,(MARKED E) RH RULE OF ROAD HDLP(T84)
MAX: MARKETING AREA EUROPE(EXPORT) EUROPE(MAE)
ORN: ORNAMENTATION,EXTERIOR,BODY EMBLEM BODY EMB(B94); ORNAMENTATION,EXTERIOR,BODY EMBLEM EXTR ORNAMENTATION(C01); ORNAMENTATION,EXTERIOR,BODY EMBLEM("LE" FUEL INJECTION)(USED WITH LE Y91) BODY EMB(B94); ORNAMENTATION,EXTERIOR,BODY EMBLEM(FRONT DOOR NAMEPLATE)(USED WITH LT Z11,GT Z21,TEMPEST Z50,CORSICA LTZ Z54) EXTR ORNAMENTATION(C01); ORNAMENTATION,EXTERIOR,BODY EMBLEM(FRONT DOOR NAMEPLATE)(USED WITH TEMPEST Z50,CORSICA LTZ Z54,GT Z21) EXTR ORNANENTATION(C01); ORNAMENTATION,EXTERIOR,BODY EMBLEM(GOLD) BODY EMB(B94); ORNAMENTATION,EXTERIOR,BODY EMBLEM(USED WITH APPEARANCE PACKAGE Z12) BODY EMB(B94); ORNAMENTATION,EXTERIOR,BODY EMBLEM(USED WITH CENTURY ESTATE WAGON W06) BODY EMB(B94); ORNAMENTATION,EXTERIOR,BODY EMBLEM(USED WITH CUSTOM Z7T) BODY EMB(B94); ORNAMENTATION,EXTERIOR,BODY EMBLEM(USED WITH EUROSPORT ZV8) BODY EMB(B94); ORNAMENTATION,EXTERIOR,BODY EMBLEM(USED WITH GT Z21) EXTR ORNAMENTATION(C01); ORNAMENTATION,EXTERIOR,BODY EMBLEM(USED WITH INTERNATIONAL Z7Q) BODY EMB(B94); ORNAMENTATION,EXTERIOR,BODY EMBLEM(USED WITH LE Z7L) BODY EMB(B94); ORNAMENTATION,EXTERIOR,BODY EMBLEM(USED WITH LESABRE T-TYPE WE2) EXTR ORNAMENTATION(C01); ORNAMENTATION,EXTERIOR,BODY EMBLEM(USED WITH LIMITED Z7U) EXTR ORNAMENTATION(C01); ORNAMENTATION,EXTERIOR,BODY EMBLEM(USED WITH PARK AVENUE W10,ULTRA W24) BODY EMB(B94); ORNAMENTATION,EXTERIOR,BODY EMBLEM(USED WITH PERFORMANCE PACKAGE Y56) EXTR ORNAMENTATION(C01); ORNAMENTATION,EXTERIOR,BODY EMBLEM(USED WITH SE Z7M) EXTR ORNAMENTATION(C01); ORNAMENTATION,EXTERIOR,BODY EMBLEM(USED WITH STE Y88) BODY EMB(B94); ORNAMENTATION,EXTERIOR,BODY EMBLEM(USED WITH T-TYPE Y50) BODY EMB(B94); ORNAMENTATION,EXTERIOR,BODY EMBLEM(USED WITH TOURING PKG WF1) EXTR ORNAMENTATION(C01); ORNAMENTATION,EXTERIOR,BODY EMBLEM(USED WITH TOURING YP5) EXTR ORNAMENTATION(C01)
OTHER: COOLING SYSTEM,HEAVY DUTY HVY DUTY CLG(V08); LAMP,SIGNALING AND MARKER(EXPORT) SIGNAL & MARKER LAMP(T90)
RES: RESTRAINT SYSTEM,FRONT SEAT INFLATABLE DRIVER SI INFL RST SYS(AJ3)
RADIATOR,(CORE SIZE 30 5/16IN X 17 3/16IN X 7/8IN, CODE FT, H2, M7, M8, HB)(ACDelco #21406). Required: 01
For: C (1985-1993) (1992 - 1993).
SHEET METAL/FRONT END Diagram
#021
Required:
Drivelines: FWD

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