Denso 221-3409 Radiator

Overview of the Denso 221-3409 Radiator for Nissan Vehicles

The Denso 221-3409 radiator is engineered specifically for Nissan Frontier, Pathfinder, and Xterra models. Designed to maintain optimal engine temperature, this radiator includes a transmission oil cooler to support vehicle performance under various driving conditions.

• Core Height: 23.625 inches
• Core Width: 27.062 inches
• Core Thickness: 1.437 inches
• Inlet Diameter: 1.375 inches
• Outlet Diameter: 1.375 inches
• Includes Transmission Oil Cooler

Detailed Specifications and Features

The Denso 221-3409 radiator features a robust core measuring 23.625 inches in height, 27.062 inches in width, and 1.437 inches in thickness, providing efficient heat dissipation for Nissan Frontier, Pathfinder, and Xterra vehicles. Both the inlet and outlet diameters are 1.375 inches, ensuring compatibility with the original cooling system hoses. The integrated transmission oil cooler supports the vehicle’s transmission by maintaining proper fluid temperature, which is critical for transmission longevity and performance.

Compatible Nissan Models and Applications

This radiator is compatible with Nissan Frontier, Pathfinder, and Xterra models, making it a suitable replacement part for cooling system maintenance or repair. The inclusion of the transmission oil cooler makes it particularly useful for vehicles that require combined engine and transmission cooling solutions.

• Overheating issues due to radiator core damage or clogging
• Transmission fluid overheating in vehicles with integrated coolers
• Leaks or cracks in the radiator core or tanks
• Reduced cooling efficiency from corrosion or wear
• Replacement during engine cooling system upgrades or repairs

Installation Notes and Tips

When installing the Denso 221-3409 radiator, ensure that the inlet and outlet hoses match the 1.375-inch diameter specifications for proper fitment. It is recommended to inspect and replace any worn hoses or clamps during installation. Properly bleed the cooling system to remove air pockets and verify that the transmission oil cooler lines are securely connected to prevent leaks.

Quality Assurance and Warranty Information

Denso radiators are manufactured to meet or exceed OEM standards for durability and performance. The 221-3409 radiator undergoes rigorous quality control to ensure reliable operation in Nissan Frontier, Pathfinder, and Xterra vehicles. Warranty coverage details should be confirmed with the distributor or manufacturer, as they may vary by region.