TYC
TYC Radiator

TYC 2491 Radiator

Brand TYC 2491
Core Material Aluminum
Transmission Oil Cooler Included Yes
Transmission Oil Cooler Type Plate oil cooler
Engine Oil Cooler Included No
Bottom Header 2.42x16.59
Core Height (in) 15.08
Core Length (in) 30.51
Core Thickness (in) 1.02
Fin Count (every 4") 56
Fin Wave Height (in) 0.35
Find Wave Pitch 3.6
Flow Configuration Crossflow
Inlet Connection Type Hose clamp
Inlet Diameter (in) 1.30
No. Of Rows 1
Outlet Connection Type Hose clamp
Outlet Diameter (in) 1.57
Toc Distance (in) 11.50
Top Header 2.42x16.59
Total Fin Row Count 35
Total Tube Count 34
Tube Count (every 4") 10
Tube Width X Height 26x2
Product line TYC Radiator
Fits Cadillac and Oldsmobile · 28 vehicles

Aluminum core. Lightweight construction helps promote efficient heat transfer.

Transmission oil cooler included. Integrated plate cooler adds extra cooling capacity.

Crossflow design. Engineered for steady coolant flow through the radiator.

Cross-references APDI 8012491, Cadillac 89018715 and Oldsmobile 89018715 for the same application. See all 5.

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TYC Radiator 2491 for DeVille and Aurora

TYC Radiator 2491 is a direct-fit radiator assembly for select Cadillac DeVille and Oldsmobile Aurora applications. Built with an aluminum core and a crossflow design, it includes a transmission oil cooler with a plate-style cooler layout for vehicles equipped with TOC.

Key Features

  • Aluminum core construction for efficient heat transfer
  • Crossflow flow configuration
  • Transmission oil cooler included with plate oil cooler type
  • No engine oil cooler included
  • Hose clamp inlet and outlet connections
  • Core dimensions: 15.08 in. height, 30.51 in. length, 1.02 in. thickness
  • Single-row design with 34 tubes and 35 total fin rows
  • TYC Radiator 2491 cross-references APDI 8012491 and Spectra Premium CU2491

Product Details

This radiator is built around a 1-row aluminum core with a 26 x 2 tube width and height profile, plus a plate-style transmission oil cooler integrated into the assembly. The inlet measures 1.30 in. and the outlet measures 1.57 in., both using hose clamp connections for the cooling system plumbing. TYC Radiator 2491 is specified for 2001-2005 Cadillac DeVille models with TOC, including 2001-2005 Cadillac DeVille with TOC and without Extra Duty Cooling, as well as 2001-2003 Oldsmobile Aurora with TOC.

Vehicle Fitment

  • Fits 2001-2005 Cadillac DeVille, N/A, w/ TOC; TYC Radiator
  • Fits 2001-2005 Cadillac DeVille, N/A, w/ TOC; w/o Extra Duty Cooling; TYC Radiator
  • Fits 2001-2003 Oldsmobile Aurora, N/A, w/ TOC; TYC Radiator

Common Replacement Reasons

  • Coolant leaks from a damaged or corroded radiator core
  • Transmission fluid temperature concerns in TOC-equipped vehicles
  • Restricted coolant flow from internal tube or fin damage
  • Cracked inlet or outlet connections
  • Overheating caused by reduced heat exchange efficiency

Installation Notes and Tips

Verify TOC-equipped application details before installation, since this radiator is listed for specific Cadillac DeVille and Oldsmobile Aurora configurations. Confirm inlet and outlet hose sizes, mounting points, and cooler line routing against the original unit before transfer. Flush the cooling system and inspect hoses, clamps, and transmission cooler lines for wear before installing TYC Radiator 2491.

Quality Assurance

TYC manufactures replacement cooling components for OE-style fitment and application-specific coverage. Part number 2491 is cataloged for direct replacement use on the listed Cadillac DeVille and Oldsmobile Aurora vehicles.

This part fits 28 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelBody TypeLitersCylindersPositionNotes
2005CadillacDeVilleDHSSedan4.6LV8N/Aw/ TOC; TYC Radiator
2005CadillacDeVilleDTSSedan4.6LV8N/Aw/ TOC; w/o Extra Duty Cooling; TYC Radiator
2005CadillacDeVilleBaseHearse4.6LV8N/Aw/ TOC; TYC Radiator
2005CadillacDeVilleBaseLimousine4.6LV8N/Aw/ TOC; TYC Radiator
2005CadillacDeVilleBaseSedan4.6LV8N/Aw/ TOC; TYC Radiator
2004CadillacDeVilleBaseSedan4.6LV8N/Aw/ TOC; TYC Radiator
2004CadillacDeVilleBaseHearse4.6LV8N/Aw/ TOC; TYC Radiator
2004CadillacDeVilleDHSSedan4.6LV8N/Aw/ TOC; TYC Radiator
2004CadillacDeVilleDTSSedan4.6LV8N/Aw/ TOC; w/o Extra Duty Cooling; TYC Radiator
2004CadillacDeVilleBaseLimousine4.6LV8N/Aw/ TOC; TYC Radiator
2003CadillacDeVilleBaseSedan4.6LV8N/Aw/ TOC; TYC Radiator
2003CadillacDeVilleBaseHearse4.6LV8N/Aw/ TOC; TYC Radiator
2003CadillacDeVilleBaseLimousine4.6LV8N/Aw/ TOC; TYC Radiator
2003CadillacDeVilleDHSSedan4.6LV8N/Aw/ TOC; TYC Radiator
2003CadillacDeVilleDTSSedan4.6LV8N/Aw/ TOC; w/o Extra Duty Cooling; TYC Radiator
2003OldsmobileAurora—Sedan4.0LV8N/Aw/ TOC; TYC Radiator
2002CadillacDeVilleBaseHearse4.6LV8N/Aw/ TOC; TYC Radiator
2002CadillacDeVilleDTSSedan4.6LV8N/Aw/ TOC; w/o Extra Duty Cooling; TYC Radiator
2002CadillacDeVilleBaseSedan4.6LV8N/Aw/ TOC; TYC Radiator
2002CadillacDeVilleDHSSedan4.6LV8N/Aw/ TOC; TYC Radiator
2002CadillacDeVilleBaseLimousine4.6LV8N/Aw/ TOC; TYC Radiator
2002OldsmobileAurora—Sedan4.0LV8N/Aw/ TOC; TYC Radiator
2001CadillacDeVilleDTSSedan4.6LV8N/Aw/ TOC; w/o Extra Duty Cooling; TYC Radiator
2001CadillacDeVilleDHSSedan4.6LV8N/Aw/ TOC; TYC Radiator
2001CadillacDeVilleBaseHearse4.6LV8N/Aw/ TOC; TYC Radiator
2001CadillacDeVilleBaseLimousine4.6LV8N/Aw/ TOC; TYC Radiator
2001CadillacDeVilleBaseSedan4.6LV8N/Aw/ TOC; TYC Radiator
2001OldsmobileAurora—Sedan4.0LV8N/Aw/ TOC; TYC Radiator
Directly replaces or cross-references 5 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
APDI — 8012491Cadillac — 89018715Oldsmobile — 89018715Partslink — GM3010204Spectra Premium — CU2491