Part #: OR2321

Onix OR2321 Radiator

7 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$173.27Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Toyota, Tundra
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Radiator for 2000-2006 Toyota Tundra

Restore proper engine cooling with the Onix OR2321 radiator for the 2000-2006 Toyota Tundra. This drop-in-fit radiator is built for direct replacement service and is engineered with quality components for dependable heat transfer and consistent performance.

Key Features

  • Direct replacement radiator for the Toyota Tundra
  • Drop-in-fit design for straightforward OE-style service
  • Built with premium components for longer service life
  • Supports stable coolant flow and heat dissipation
  • Onix part number OR2321 for easy identification

Product Details

Onix Automotive focuses on value-priced cooling and chassis components, and the OR2321 radiator reflects that approach with a fitment-specific design for 2000-2006 Toyota Tundra models. It is intended for drivers replacing a leaking, clogged, or damaged radiator and for shops looking for a direct-fit cooling system service part. The OR2321 part number should be verified against the vehicle application before installation.

Common Cooling System Issues

  • Coolant leaks from a cracked or corroded radiator
  • Engine temperature running higher than normal
  • Restricted coolant flow from internal buildup
  • Visible damage from road debris or age-related wear
  • Cooling performance loss after radiator failure

Installation Notes

Confirm the vehicle is a 2000-2006 Toyota Tundra before ordering. Inspect hoses, clamps, and coolant condition during replacement, and flush the cooling system if contamination is present. Follow factory service procedures for coolant refill and air bleeding to help prevent overheating after installation.

Quality Assurance

Onix designs its product lines with upgraded components and a focus on service life and performance consistency. This radiator is part of the brand’s drop-in-fit cooling lineup, created for direct replacement use in the specified Toyota Tundra applications.

This part fits 7 vehicles. Search below:

YearMakeModelBody TypeLitersCylindersPositionNotes
2006ToyotaTundraExtended Cab Pickup4.7LV8N/A
2005ToyotaTundraExtended Cab Pickup4.7LV8N/A
2004ToyotaTundraExtended Cab Pickup4.7LV8N/A
2003ToyotaTundra4.7LV8N/A
2002ToyotaTundra4.7LV8N/A
2001ToyotaTundra4.7LV8N/A
2000ToyotaTundra4.7LV8N/A

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