Denso 221-3151 Radiator

Denso Radiator for Toyota Tundra

The Denso 221-3151 radiator is built for 2007-2014 Toyota Tundra applications and follows OE-style dimensions for proper cooling system fitment. With a 25.5620-inch core height, 27.9370-inch core width, and 0.6250-inch core thickness, it is sized to match the factory radiator layout for the Toyota Tundra cooling system.

Key Features

• Fits 2007-2014 Toyota Tundra, N/A
• Core height: 25.5620 in.
• Core width: 27.9370 in.
• Core thickness: 0.6250 in.
• Inlet diameter: 1.3750 in.
• Outlet diameter: 1.3750 in.
• No transmission oil cooler included
• Denso part number 221-3151

Detailed Description

Denso supplies radiators to OE vehicle manufacturers and applies that OE experience to this replacement radiator. The core dimensions, tank configuration, fin pitch, and materials are engineered to meet original manufacturer standards for fit and thermal performance. For Toyota Tundra owners looking for a direct radiator replacement, Denso 221-3151 is built to support consistent engine cooling under everyday driving and demanding operating conditions.

This radiator cross-references Toyota 16400-0P170 for the same application. It also aligns with aftermarket references such as Spectra Premium CU2993 for buyers comparing Toyota Tundra radiator options.

What It Helps Address

• Overheating caused by a worn or leaking radiator
• Coolant loss from cracked tanks or damaged core passages
• Reduced cooling efficiency from age-related internal restriction
• Fitment issues when replacing a factory-style Toyota Tundra radiator
• Cooling system service needs on 2007-2014 Toyota Tundra models

Installation Notes and Tips

Verify inlet and outlet hose sizes, mounting points, and overall core dimensions before installation. Because this radiator does not include a transmission oil cooler, confirm that your vehicle’s cooling system configuration matches the part before ordering. Replace aged hoses, clamps, and coolant as needed during radiator service, and bleed the cooling system carefully after installation to remove trapped air.

Quality Assurance

Denso radiators are built using OE-level engineering and are subjected to durability and function testing before release. The result is a radiator designed to deliver reliable cooling performance and proper fitment for Toyota Tundra applications.