Denso 221-9391 Radiator

Overview of Denso Radiator for Subaru Impreza

The Denso radiator part number 221-9391 is designed specifically for Subaru Impreza models, providing reliable cooling performance. Engineered with precise core dimensions, this radiator supports efficient heat dissipation to maintain optimal engine temperature.

• Core Height: 13.39 inches
• Core Width: 27.87 inches
• Core Thickness: 0.98 inches
• Inlet Diameter: 1.5 inches
• Outlet Diameter: 1.52 inches
• Transmission Oil Cooler: Not included

Detailed Radiator Specifications and Features

This Denso radiator features a core height of 13.39 inches and a width of 27.87 inches, providing a substantial surface area for effective cooling. The core thickness of 0.98 inches ensures durability while allowing sufficient coolant flow. The inlet and outlet diameters of 1.5 and 1.52 inches respectively are designed to match the Subaru Impreza’s cooling system connections, ensuring a secure fit and proper coolant circulation. Note that this radiator does not include a transmission oil cooler, making it suitable for models without integrated transmission cooling requirements.

Compatible Vehicles and Applications

This radiator is compatible with Subaru Impreza vehicles, engineered to meet the specific cooling demands of this model. Using part number 221-9391 ensures proper fitment and performance for Subaru Impreza owners seeking a direct replacement radiator.

• Overheating issues due to radiator core damage or clogging
• Coolant leaks from cracked or corroded radiator components
• Reduced engine cooling efficiency affecting performance
• Replacement of worn or damaged factory radiator
• Maintaining optimal engine temperature under various driving conditions

Installation Notes and Tips

When installing the Denso radiator 221-9391 on a Subaru Impreza, ensure all hose connections match the specified inlet and outlet diameters for a leak-free seal. It is recommended to flush the cooling system before installation to remove debris and contaminants. Properly torque mounting bolts and verify coolant levels after installation to prevent air pockets and ensure efficient cooling system operation.

Quality Assurance and Warranty Information

Denso radiators are manufactured to meet OEM standards, providing reliable performance and durability. While specific warranty details for part number 221-9391 may vary, Denso products typically come with a limited warranty covering defects in materials and workmanship. Consult product documentation or authorized sources for exact warranty terms.