Denso 221-9316 Radiator

Overview of Denso Radiator 221-9316 for Lexus ES300h and ES350

The Denso radiator part number 221-9316 is designed specifically for Lexus ES300h and ES350 models. Engineered to maintain optimal engine temperature, this radiator features precise core dimensions and inlet/outlet diameters to ensure proper fit and efficient cooling performance.

• Core Height: 15.75 inches
• Core Width: 31.13 inches
• Core Thickness: 0.63 inches
• Inlet Diameter: 1.36 inches
• Outlet Diameter: 1.36 inches
• Transmission Oil Cooler: Not included

Detailed Radiator Specifications and Design

This Denso radiator 221-9316 is constructed with a core height of 15.75 inches and a width of 31.13 inches, providing a substantial surface area for heat dissipation. The core thickness of 0.63 inches balances durability with efficient coolant flow. Both the inlet and outlet diameters measure 1.36 inches, matching the factory specifications for seamless integration with the Lexus ES300h and ES350 cooling systems. Note that this radiator does not include a transmission oil cooler, so it is intended for vehicles with separate transmission cooling solutions.

Compatible Vehicles and Application

This radiator is compatible with the following Lexus models:

• Lexus ES300h
• Lexus ES350

It is designed to replace the original radiator and restore proper engine cooling, helping to prevent overheating and maintain engine efficiency.

Common Issues Addressed by This Radiator

• Engine overheating due to radiator leaks or blockages
• Reduced cooling efficiency from damaged or corroded radiator cores
• Coolant leaks from cracked or worn radiator tanks
• Inadequate coolant flow caused by incorrect radiator dimensions
• Failure of the original radiator leading to engine performance issues

Installation Notes and Tips

When installing the Denso radiator 221-9316 on Lexus ES300h or ES350 models, ensure all hose connections match the 1.36-inch inlet and outlet diameters for a secure fit. Verify that the radiator core dimensions align with the vehicle’s mounting points. Since this radiator does not include a transmission oil cooler, confirm that the vehicle’s transmission cooling system is intact or serviced separately. Proper coolant type and level should be maintained after installation to ensure optimal performance.

Quality Assurance and Warranty

Denso radiators are manufactured to meet OEM standards for fit, form, and function. While specific warranty details for part number 221-9316 are not provided here, Denso products typically come with a limited warranty covering defects in materials and workmanship. It is recommended to consult the product documentation or supplier for exact warranty terms.