Koyorad A2459 Radiator

Overview of Koyorad A2459 Radiator for Infiniti and Nissan

The Koyorad A2459 radiator is engineered for reliable cooling performance in Infiniti Pathfinder and Nissan QX4 vehicles. Designed with durable aluminum core construction and integrated transmission oil cooler, this radiator supports efficient engine and transmission temperature management.

• Core dimensions: 27.9375 inches width, 19.6875 inches height, 0.625 inches thickness
• Aluminum core material for effective heat dissipation
• Single core row design for optimized cooling flow
• Plastic tank material for corrosion resistance
• Inlet and outlet diameters of 1.375 inches
• Includes internal transmission oil cooler with 1.25-inch diameter
• Compatible with Infiniti Pathfinder and Nissan QX4 models

Detailed Radiator Specifications and Features

The Koyorad A2459 radiator features a robust aluminum core measuring 27.9375 inches wide by 19.6875 inches high and 0.625 inches thick. Its single-row core design balances cooling efficiency with compact size, suitable for the engine bay of the Infiniti Pathfinder and Nissan QX4. The plastic tanks provide resistance to corrosion and reduce overall weight. Both the inlet and outlet ports measure 1.375 inches in diameter, ensuring proper coolant flow. Additionally, this radiator includes an internal transmission oil cooler with a 1.25-inch diameter, allowing simultaneous cooling of transmission fluid, which is critical for maintaining transmission performance and longevity in these vehicles.

Applications and Common Issues Addressed

• Replacement for leaking or damaged radiator in Infiniti Pathfinder and Nissan QX4
• Resolves overheating caused by inefficient heat dissipation
• Addresses transmission fluid overheating with integrated oil cooler
• Prevents coolant leaks from corroded or cracked plastic tanks
• Improves engine cooling system reliability and performance

Installation Notes and Tips

When installing the Koyorad A2459 radiator, ensure compatibility with the Infiniti Pathfinder or Nissan QX4 model year and engine configuration. Properly flush the cooling system before installation to remove debris and contaminants. Verify all hose connections match the 1.375-inch inlet and outlet diameters. Check transmission oil cooler lines for secure attachment to the integrated cooler. Follow manufacturer torque specifications for mounting bolts to avoid damage to the plastic tanks.

Quality Assurance and Warranty Information

Koyorad radiators are manufactured to meet OEM standards for fit, form, and function. The A2459 radiator undergoes rigorous quality control to ensure durability and performance under normal operating conditions. Warranty coverage details should be confirmed with the distributor or manufacturer, as they may vary by region and seller.