Denso 221-3120 Radiator

Overview of the Denso Radiator for Lexus IS300

The Denso 221-3120 radiator is engineered specifically for the Lexus IS300, providing reliable cooling performance. Designed with precise core dimensions and integrated transmission oil cooler, this radiator supports optimal engine temperature management.

• Core Height: 14.75 inches
• Core Width: 28.25 inches
• Core Thickness: 1.00 inch
• Inlet Diameter: 1.375 inches
• Outlet Diameter: 1.375 inches
• Includes Transmission Oil Cooler

Detailed Radiator Specifications and Features

This Denso radiator, part number 221-3120, features a core height of 14.75 inches and a width of 28.25 inches, providing ample surface area for heat dissipation. The 1-inch core thickness balances efficient cooling with compact design. Both the inlet and outlet diameters measure 1.375 inches, ensuring compatibility with the Lexus IS300's cooling system hoses. The integrated transmission oil cooler supports transmission fluid temperature regulation, enhancing overall vehicle performance and longevity.

Compatible Vehicles and Application

This radiator is compatible with the Lexus IS300 model, designed to meet the specific cooling requirements of this vehicle. It is suitable for those seeking a direct replacement radiator that maintains factory specifications and fitment.

• Overheating issues due to radiator core damage or clogging
• Coolant leaks from radiator cracks or corrosion
• Transmission fluid overheating caused by faulty or missing transmission oil cooler
• Reduced engine performance from inefficient cooling
• Replacement during routine maintenance or radiator failure

Installation Notes and Tips

When installing the Denso 221-3120 radiator on a Lexus IS300, ensure all hose connections match the 1.375-inch inlet and outlet diameters for a secure fit. Drain all coolant and transmission fluid before removal. Inspect and replace any worn hoses or clamps to prevent leaks. Properly bleed the cooling system after installation to avoid air pockets and ensure optimal performance.

Quality Assurance and Warranty

Denso radiators are manufactured to meet OEM standards, ensuring durability and reliable performance. This radiator includes an integrated transmission oil cooler to maintain transmission health. Warranty coverage details should be confirmed at the point of purchase, typically offering protection against manufacturing defects.