Denso 221-3515 Radiator

Overview of Denso Radiator for Mazda MX-5 Miata

The Denso 221-3515 radiator is engineered specifically for the Mazda MX-5 Miata, providing reliable cooling performance. Designed with precise core dimensions and integrated transmission oil cooler, this radiator supports optimal engine temperature management.

• Core Height: 21.6250 inches
• Core Width: 16.8750 inches
• Core Thickness: 0.6250 inches
• Inlet Diameter: 1.2500 inches
• Outlet Diameter: 1.2500 inches
• Includes Transmission Oil Cooler

Detailed Radiator Specifications and Features

This Denso radiator (part number 221-3515) features a core height of 21.6250 inches and a width of 16.8750 inches, providing a balanced surface area for efficient heat dissipation. The core thickness of 0.6250 inches ensures durability while maintaining effective coolant flow. Both the inlet and outlet diameters measure 1.2500 inches, compatible with the Mazda MX-5 Miata’s cooling system connections. The integrated transmission oil cooler enhances the radiator’s functionality by helping regulate transmission fluid temperature, which is critical for maintaining transmission performance and longevity.

Applications and Problem Solving

• Replaces faulty or leaking radiator in Mazda MX-5 Miata models
• Addresses overheating issues caused by inefficient cooling
• Resolves transmission fluid overheating with built-in oil cooler
• Improves engine temperature regulation for consistent performance
• Prevents coolant leaks and potential engine damage

Installation Notes and Tips

When installing the Denso 221-3515 radiator on a Mazda MX-5 Miata, ensure all hose connections match the 1.2500 inch inlet and outlet diameters for a secure fit. It is recommended to drain the existing coolant and transmission fluid before removal. Inspect mounting brackets and hardware for wear and replace if necessary. Properly bleed the cooling system after installation to avoid air pockets and ensure optimal coolant circulation.

Quality Assurance and Warranty

Denso radiators are manufactured to meet OEM specifications, ensuring compatibility and reliable performance for the Mazda MX-5 Miata. This radiator undergoes rigorous quality control testing to verify durability and cooling efficiency. While specific warranty details may vary, Denso products typically include a limited warranty covering defects in materials and workmanship.