OE Quality
60-Day Returns

Onix OR2320 Radiator
Radiator for 2000-2006 Toyota Tundra
Onix OR2320 is a direct-fit radiator for the 2000-2006 Toyota Tundra. It is built as a drop-in-fit replacement to support dependable engine cooling and consistent thermal control in daily driving and demanding use.
Key Features
- Direct-fit radiator for the Toyota Tundra
- Engineered with premium-quality components for longer service life
- Designed for stable coolant flow and heat transfer
- Drop-in-fit design for straightforward replacement
- Part number OR2320 for accurate ordering and lookup
Detailed Description
Onix Automotive develops value-priced cooling components with an emphasis on fit and durability. The OR2320 radiator is part of that lineup and is made for 2000-2006 Toyota Tundra applications. If you are replacing a leaking, clogged, or damaged radiator, this unit provides a direct replacement path for restoring normal cooling system operation. The OR2320 is also a useful reference when searching for Toyota Tundra radiator replacement, 2000-2006 Toyota Tundra cooling system parts, or Onix OR2320 radiator fitment.
What It Helps Address
- Coolant leaks from a damaged radiator core or tank
- Overheating caused by restricted coolant flow
- Temperature fluctuation from reduced heat dissipation
- Cooling system service needs on a 2000-2006 Toyota Tundra
- Replacement of a worn or corroded factory radiator
Installation Notes and Tips
Verify radiator dimensions, hose connections, and mounting points before installation. Flush the cooling system, inspect hoses and clamps, and refill with the correct coolant mixture after installation. Confirm there are no leaks and that the engine reaches normal operating temperature without overheating. This part number, OR2320, should be matched to the vehicle application before purchase.
Quality Assurance
Onix positions this radiator within its premium-quality, value-focused product range, using engineered components intended to support reliable service life and consistent performance. For buyers comparing Toyota Tundra radiator options, OR2320 provides a direct-fit replacement backed by the brand’s cooling-system design approach.
This part fits 7 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2006 | Toyota | Tundra | 4.0L | V6 | N/A | |
| 2005 | Toyota | Tundra | 4.0L | V6 | N/A | |
| 2004 | Toyota | Tundra | 3.4L | V6 | N/A | |
| 2003 | Toyota | Tundra | 3.4L | V6 | N/A | |
| 2002 | Toyota | Tundra | 3.4L | V6 | N/A | |
| 2001 | Toyota | Tundra | 3.4L | V6 | N/A | |
| 2000 | Toyota | Tundra | 3.4L | V6 | N/A |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.