Denso 221-9238 Radiator

Overview of Denso Radiator for Mazda RX-8

The Denso 221-9238 radiator 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 Thickness: 1.42 inches
• Core Width: 25.71 inches
• Transmission Oil Cooler Included
• Inlet Diameter: 1.375 inches
• Outlet Diameter: 1.4 inches

Detailed Radiator Specifications

This radiator features a core height of 14.17 inches, core thickness of 1.42 inches, and a core width of 25.71 inches, dimensions optimized for the Mazda RX-8 cooling system. The inclusion of a transmission oil cooler enhances heat dissipation for the transmission fluid, contributing to overall vehicle performance and longevity. The inlet and outlet diameters of 1.375 inches and 1.4 inches respectively ensure proper coolant flow and compatibility with factory hoses.

Compatible Vehicles and Applications

This Denso radiator, part number 221-9238, is compatible with Mazda RX-8 models requiring a radiator with integrated transmission oil cooler. It is designed to address common cooling system issues such as:

• Engine overheating due to inefficient heat exchange
• Transmission fluid overheating affecting shifting performance
• Coolant leaks from damaged or worn radiator cores
• Reduced cooling capacity from clogged or corroded radiator fins

Installation Notes and Tips

When installing the Denso 221-9238 radiator on a Mazda RX-8, ensure all hose connections match the specified inlet and outlet diameters for a secure fit. It is recommended to flush the cooling system before installation to remove debris and contaminants. Properly bleed the cooling system after installation to prevent air pockets and ensure efficient coolant circulation.

Quality Assurance and Warranty

Denso radiators are manufactured to meet OEM standards, ensuring durability and performance. The 221-9238 radiator undergoes rigorous quality control to maintain consistent core dimensions and material integrity. Warranty coverage details should be confirmed with the distributor or manufacturer, typically covering defects in materials and workmanship.