Denso 221-3423 Radiator

Overview of the Denso Radiator 221-3423 for Infiniti Models

The Denso radiator part number 221-3423 is engineered to provide reliable cooling performance for select Infiniti vehicles. Designed specifically for models such as the EX35, EX37, FX35, FX37, QX50, and QX70, this radiator supports optimal engine temperature management under various driving conditions.

• Core Height: 25.062 inches
• Core Width: 20.562 inches
• Core Thickness: 0.625 inches
• Transmission Oil Cooler Included
• Inlet Diameter: 1.375 inches
• Outlet Diameter: 1.375 inches

Detailed Specifications and Features

The Denso 221-3423 radiator features a core measuring 25.062 inches in height, 20.562 inches in width, and 0.625 inches in thickness, providing an efficient surface area for heat dissipation. This radiator includes an integrated transmission oil cooler, which helps maintain transmission fluid temperature, enhancing transmission longevity and performance. Both the inlet and outlet diameters are 1.375 inches, ensuring compatibility with the original cooling system hoses on Infiniti EX35, EX37, FX35, FX37, QX50, and QX70 models.

Compatible Infiniti Models and Applications

This radiator is compatible with the following Infiniti vehicles:

• Infiniti EX35
• Infiniti EX37
• Infiniti FX35
• Infiniti FX37
• Infiniti QX50
• Infiniti QX70

It is designed to replace the original radiator and maintain factory cooling system performance, ensuring proper engine and transmission temperature regulation.

Common Issues Addressed by the Denso Radiator 221-3423

• Engine overheating due to radiator core damage or clogging
• Transmission fluid overheating from a faulty or missing transmission oil cooler
• Coolant leaks caused by radiator wear or corrosion
• Reduced cooling efficiency from damaged or bent radiator fins
• Incompatible radiator dimensions leading to improper fit or hose connection issues

Installation Notes and Tips

• Verify compatibility with your Infiniti model and year before installation
• Inspect and replace radiator hoses if worn or damaged to ensure proper sealing
• Drain coolant and transmission fluid as necessary before removal
• Ensure inlet and outlet hose diameters (1.375 inches) match existing hoses
• Check for proper mounting and secure all connections to prevent leaks

Quality Assurance and Warranty Information

Denso radiators, including part number 221-3423, are manufactured to meet or exceed OEM specifications for durability and performance. This radiator undergoes rigorous quality control testing to ensure reliable operation. Warranty coverage details should be confirmed at the point of purchase, as they may vary by distributor or region.