Koyorad A2321 Radiator

Brand Koyorad A2321
Core Height 22.625
Core Material Aluminum
Core Row Quantity 2
Core Thickness 1.4375
Core Width 28.3125
Inlet Diameter 1.5
Internal Transmission Oil Cooler Yes
Outlet Diameter 1.5
Tank Material Plastic
Title Koyorad a2321 radiator
Transmission Oil Cooler Diameter 1.375
Transmission Oil Cooler Included Yes
Fits Toyota · 7 vehicles

OE equivalent radiator. Built to deliver a direct replacement fit and function.

Aluminum core. Helps promote efficient heat transfer for dependable cooling.

Transmission oil cooler included. Adds integrated cooling support in one radiator assembly.

$212.87Free shipping
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Koyorad A2321 Radiator for Toyota Tundra

The Koyorad A2321 radiator is an OE-equivalent replacement built for 2000-2006 Toyota Tundra applications. It combines an aluminum core with plastic tanks and includes an internal transmission oil cooler for direct replacement service on the specified trucks.

Key Features

  • Fits 2000-2006 Toyota Tundra
  • OE-equivalent replacement radiator from Koyorad
  • Aluminum core with plastic tanks
  • 2-row core design for factory-style cooling performance
  • Internal transmission oil cooler included
  • Inlet diameter: 1.5 in.; outlet diameter: 1.5 in.
  • Transmission oil cooler diameter: 1.375 in.
  • Core dimensions: 22.625 in. height, 28.3125 in. width, 1.4375 in. thickness

Detailed Description

Koyorad A2321 is a replacement radiator engineered for Toyota Tundra cooling-system service where an OE-style fit and factory-style layout are required. The aluminum core supports heat transfer, while the plastic tank construction matches common original-equipment radiator design. With a 2-row core and an integrated transmission oil cooler, this radiator addresses both engine cooling and automatic transmission fluid cooling in one assembly. For buyers searching for a 2000-2006 Toyota Tundra radiator, Koyorad A2321 provides the key dimensions and connections needed for a direct-fit replacement.

This part cross-references no listed alternate part numbers for the same application.

Common Uses

  • Replacing a leaking or cracked Toyota Tundra radiator
  • Restoring cooling performance after overheating
  • Addressing transmission fluid temperature control concerns
  • Repairing damaged inlet, outlet, or cooler connections
  • Replacing a clogged or corroded factory radiator

Installation Notes

Verify core dimensions, inlet and outlet size, and transmission oil cooler connection size before installation. Confirm that the vehicle is a 2000-2006 Toyota Tundra and compare the existing radiator layout to the Koyorad A2321 radiator before removal. Flush the cooling system and inspect hoses, clamps, and transmission cooler lines during replacement to help prevent repeat service.

Quality Assurance

Koyorad manufactures OE-equivalent radiators using application-specific engineering and replacement-focused construction. The A2321 is built to match the expected cooling-system configuration for the listed Toyota Tundra fitment.

This part fits 7 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2006ToyotaTundra4.7LV8N/A—
2005ToyotaTundra4.7LV8N/A—
2004ToyotaTundra4.7LV8N/A—
2003ToyotaTundra4.7LV8N/A—
2002ToyotaTundra4.7LV8N/A—
2001ToyotaTundra4.7LV8N/A—
2000ToyotaTundra4.7LV8N/A—