Denso 221-9389 Radiator

Overview of Denso Radiator for Mazda RX-8

The Denso radiator part number 221-9389 is engineered specifically for the Mazda RX-8, providing reliable cooling performance. Designed with precise core dimensions and integrated transmission oil cooler, this radiator supports optimal engine temperature management.

• Core Height: 14.17 inches
• Core Width: 26.18 inches
• Core Thickness: 0.98 inches
• Transmission Oil Cooler Included
• Inlet Diameter: 1.375 inches
• Outlet Diameter: 1.4 inches

Detailed Radiator Specifications and Features

This Denso radiator (part number 221-9389) features a core height of 14.17 inches, width of 26.18 inches, and thickness of 0.98 inches, ensuring efficient heat dissipation for the Mazda RX-8. The inclusion of a transmission oil cooler enhances the cooling system by maintaining transmission fluid temperature, which is critical for vehicle performance and longevity. The inlet and outlet diameters of 1.375 and 1.4 inches respectively are designed to match OEM specifications, facilitating straightforward installation and compatibility.

Applications and Problem Solving

This radiator is compatible with Mazda RX-8 models requiring a direct replacement radiator with integrated transmission oil cooler. It addresses several common issues:

• Overheating due to radiator core damage or clogging
• Transmission fluid overheating affecting transmission performance
• Leaks or cracks in the radiator core or tanks
• Reduced cooling efficiency from worn or corroded components

Installation Notes and Tips

When installing the Denso radiator 221-9389 on a Mazda RX-8, ensure the following:

• Verify compatibility with your specific RX-8 model year
• Inspect and replace all related hoses and clamps as needed
• Drain coolant and transmission fluid properly before removal
• Check for proper seating of inlet and outlet connections to avoid leaks
• Refill with manufacturer-recommended coolant and transmission fluid

Quality Assurance and Warranty

Denso radiators are manufactured to meet or exceed OEM standards for durability and performance. The 221-9389 radiator undergoes rigorous quality control to ensure reliable operation in Mazda RX-8 vehicles. Warranty coverage details should be confirmed with the distributor or manufacturer, as they may vary by region.