Denso 221-9254 Radiator

Overview of the Denso Radiator for Audi RS5 and S5

The Denso radiator part number 221-9254 is engineered specifically for Audi RS5 and S5 models. Designed to maintain optimal engine temperature, this radiator includes a transmission oil cooler to support both engine and transmission cooling needs.

• Core Height: 28.35 inches
• Core Thickness: 1.42 inches
• Core Width: 19.41 inches
• Transmission Oil Cooler Included
• Inlet Diameter: 1.52 inches
• Outlet Diameter: 1.52 inches

Technical Specifications and Features

This Denso radiator features a robust core measuring 28.35 inches in height, 19.41 inches in width, and 1.42 inches in thickness, providing efficient heat dissipation for Audi RS5 and S5 vehicles. The inclusion of a transmission oil cooler enhances the cooling system by managing transmission fluid temperature, which is critical for maintaining transmission performance and longevity. Both the inlet and outlet diameters are 1.52 inches, ensuring compatibility with the factory cooling system connections.

Applications and Problem Solving

This radiator is compatible with Audi RS5 and S5 models, making it a direct replacement for the original equipment. It is designed to address several common cooling system issues:

• Overheating due to radiator core damage or clogging
• Transmission overheating caused by inadequate fluid cooling
• Leaks or cracks in the radiator core or tanks
• Reduced cooling efficiency from corrosion or wear
• Failure of OEM radiator components affecting engine performance

Installation Notes and Tips

When installing the Denso radiator 221-9254 on Audi RS5 or S5 models, ensure all coolant and transmission fluid lines are properly connected to the 1.52-inch inlet and outlet ports. It is recommended to flush the cooling system and transmission fluid cooler lines before installation to prevent contamination. Verify that mounting points align with factory specifications to avoid stress on the radiator core.

Quality Assurance and Warranty

Denso radiators are manufactured to meet OEM standards for fit, form, and function. The 221-9254 radiator undergoes rigorous quality control to ensure durability and reliable performance in Audi RS5 and S5 vehicles. Warranty coverage details should be confirmed with the distributor or manufacturer, as they may vary by region.