Denso 221-4406 Radiator

Overview of Denso Radiator 221-4406 for Nissan Vehicles

The Denso radiator part number 221-4406 is designed specifically for Nissan D21, Pathfinder, and Pickup models. This radiator includes a built-in transmission oil cooler, providing efficient cooling performance tailored to these vehicles.

• Core Height: 16.937 inches
• Core Width: 25.5 inches
• Core Thickness: 1.0 inch
• Inlet Diameter: 1.375 inches
• Outlet Diameter: 1.375 inches
• Includes Transmission Oil Cooler

Detailed Specifications and Features

The Denso 221-4406 radiator features a core measuring 16.937 inches in height, 25.5 inches in width, and 1 inch in thickness, ensuring optimal heat dissipation for Nissan D21, Pathfinder, and Pickup models. Both the inlet and outlet diameters are 1.375 inches, matching OEM specifications for seamless integration. The inclusion of a transmission oil cooler enhances the radiator’s functionality by providing additional cooling for the transmission fluid, which is critical for maintaining transmission performance and longevity under various driving conditions.

Compatible Nissan Models and Applications

This radiator is compatible with Nissan D21, Pathfinder, and Pickup vehicles, making it a suitable replacement part for owners seeking to maintain or restore their vehicle’s cooling system. The Denso 221-4406 radiator supports the cooling needs of these models, particularly in applications where the transmission oil cooler is required.

• Overheating issues in Nissan D21, Pathfinder, and Pickup
• Transmission fluid overheating or degradation
• Leaking or damaged radiator cores
• Reduced engine cooling efficiency
• Replacement of worn or corroded radiator components

Installation Notes and Tips

When installing the Denso radiator 221-4406, ensure that the inlet and outlet hoses match the 1.375-inch diameter specifications for proper fitment. Verify that the transmission oil cooler lines are correctly connected to maintain transmission cooling functionality. It is recommended to inspect all related hoses and clamps during installation and replace any worn components to prevent leaks. Proper bleeding of the cooling system after installation will help avoid air pockets and ensure optimal performance.

Quality Assurance and Warranty Information

Denso radiators are manufactured to meet or exceed OEM standards, providing reliable cooling performance for Nissan D21, Pathfinder, and Pickup vehicles. The 221-4406 radiator undergoes rigorous quality control to ensure durability and fitment accuracy. Warranty coverage details should be confirmed with the supplier or manufacturer, as they may vary by region and distributor.