Denso 221-9390 Radiator

Overview of the Denso Radiator for Mazda RX-8

The Denso radiator part number 221-9390 is designed specifically for the Mazda RX-8, providing reliable cooling performance. Engineered to meet OEM specifications, this radiator ensures proper heat dissipation to maintain optimal engine temperature.

• Core Height: 14.17 inches
• Core Width: 26.18 inches
• Core Thickness: 0.98 inches
• Inlet Diameter: 1.375 inches
• Outlet Diameter: 1.4 inches
• Transmission Oil Cooler: Not included

Technical Specifications and Design Details

This radiator features a core measuring 14.17 inches in height, 26.18 inches in width, and 0.98 inches in thickness, providing an efficient surface area for heat exchange. The inlet and outlet diameters of 1.375 inches and 1.4 inches respectively are designed to match the Mazda RX-8’s cooling system connections, ensuring a secure fit and proper coolant flow. Note that this radiator does not include a transmission oil cooler, so it is intended solely for engine cooling applications.

Compatible Vehicles and Application

This Denso radiator 221-9390 is compatible with the Mazda RX-8 model. It is engineered to replace the original radiator, maintaining the vehicle’s factory cooling performance. When searching for a radiator replacement for a Mazda RX-8, specifying the part number 221-9390 will help ensure compatibility and correct fitment.

• Overheating issues due to radiator core damage or clogging
• Coolant leaks from cracked or corroded radiator tanks
• Reduced cooling efficiency causing engine temperature fluctuations
• Physical damage from road debris or accidents
• Replacement during engine rebuild or cooling system upgrades

Installation Notes and Tips

Installation of the Denso radiator 221-9390 should be performed by a qualified technician or an experienced DIY mechanic familiar with Mazda RX-8 cooling systems. Ensure all coolant hoses match the inlet and outlet diameters of 1.375 and 1.4 inches respectively for proper sealing. It is recommended to flush the cooling system before installation to remove any debris or contaminants. Verify that mounting points align correctly and that the radiator is securely fastened to prevent vibration damage.

Quality Assurance and Warranty Information

Denso radiators are manufactured to meet strict quality standards and OEM specifications. The 221-9390 radiator undergoes rigorous testing to ensure durability and performance under normal operating conditions. While specific warranty details may vary, Denso typically offers a limited warranty covering defects in materials and workmanship. Consult the product documentation or supplier for exact warranty terms related to this radiator.