Part #: OR2491

Onix OR2491 Radiator

8 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Cadillac and Oldsmobile, Aurora and DeVille
Easy Returns — Return within 60 days for a full refund
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Radiator for Cadillac DeVille and Oldsmobile Aurora

The Onix OR2491 radiator is a direct-fit cooling system replacement for select 2001-2005 Cadillac DeVille and 2001-2003 Oldsmobile Aurora applications. Built for vehicles without extra capacity cooling on DeVille models, and for Aurora models with transmission oil cooler and without engine oil cooler, this radiator supports proper engine temperature control in everyday driving.

Key Features

  • Direct-fit radiator for confirmed vehicle applications
  • Onix premium-quality replacement part engineered for dependable cooling performance
  • Drop-in-fit design for easier matching to original mounting points
  • Built with top-tier components for longer service life and consistent operation
  • Part number OR2491 for accurate ordering and catalog lookup

Detailed Description

Onix Automotive developed the OR2491 as part of its value-focused cooling line, combining OE-style fitment with upgraded component quality. This radiator is made for 2001-2005 Cadillac DeVille models without extra capacity cooling and 2001-2003 Oldsmobile Aurora models without engine oil cooler and with transmission oil cooler. If you are replacing a leaking, clogged, or damaged radiator, the Onix OR2491 provides a straightforward solution for restoring normal coolant flow and heat transfer. This part number, OR2491, is a practical match for drivers searching for a Cadillac DeVille radiator or Oldsmobile Aurora radiator replacement.

What This Radiator Helps Address

  • Coolant leaks from a cracked or corroded radiator tank or core
  • Overheating caused by restricted coolant circulation
  • Temperature instability from an aging or inefficient radiator
  • Cooling system service needs after radiator damage or wear
  • Replacement needs for a Cadillac DeVille or Oldsmobile Aurora radiator application

Installation Notes and Tips

Verify the vehicle configuration before ordering: this radiator fits 2001-2005 Cadillac DeVille, N/A, w/o Extra Capacity Cooling, and 2001-2003 Oldsmobile Aurora, N/A, w/o EOC (Engine Oil Cooler); w/ TOC (Transmission Oil Cooler). Confirm hose routing, mounting points, and cooler connections against the original unit before installation. Flush the cooling system, inspect related hoses and clamps, and refill with the correct coolant mixture after installation.

Quality Assurance

Onix positions this radiator within its premium drop-in-fit replacement line, using engineered components selected for improved service life and reliable performance. The OR2491 is built to deliver the fit and function expected in a quality radiator replacement for Cadillac DeVille and Oldsmobile Aurora applications.

This part fits 8 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2005CadillacDeVille4.6LV8N/Aw/o Extra Capacity Cooling;
2004CadillacDeVille4.6LV8N/Aw/o Extra Capacity Cooling;
2003CadillacDeVille4.6LV8N/Aw/o Extra Capacity Cooling;
2003OldsmobileAurora4.0LV8N/Aw/o EOC (Engine Oil Cooler); w/ TOC (Transmission Oil Cooler)
2002CadillacDeVille4.6LV8N/Aw/o Extra Capacity Cooling;
2002OldsmobileAurora4.0LV8N/Aw/o EOC (Engine Oil Cooler); w/ TOC (Transmission Oil Cooler)
2001CadillacDeVille4.6LV8N/Aw/o Extra Capacity Cooling;
2001OldsmobileAurora4.0LV8N/Aw/o EOC (Engine Oil Cooler); w/ TOC (Transmission Oil Cooler)

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.