Denso 221-3143 Radiator

Reliable Radiator Replacement for Lexus and Toyota Vehicles

The Denso 221-3143 radiator is engineered to meet the cooling demands of select Lexus and Toyota models, including the CT200h, Prius, and Prius Plug-In. Designed with precise core dimensions and inlet/outlet diameters, this radiator ensures efficient heat dissipation and optimal engine performance.

• Core Height: 23.562 inches
• Core Width: 14.750 inches
• Core Thickness: 0.625 inches
• Inlet Diameter: 1.437 inches
• Outlet Diameter: 1.437 inches
• Transmission Oil Cooler: Not included

Detailed Radiator Specifications and Design

This Denso radiator features a core height of 23.562 inches and a width of 14.750 inches, providing a substantial surface area for effective cooling. The core thickness of 0.625 inches balances durability with efficient heat transfer. Both the inlet and outlet diameters measure 1.437 inches, ensuring compatibility with the original cooling system hoses on compatible Lexus and Toyota models. Note that this radiator does not include a transmission oil cooler, making it suitable for vehicles where a separate transmission cooler is used or not required.

Compatible Vehicles and Applications

This radiator is specifically designed for use in the following vehicles:

• Lexus CT200h
• Toyota Prius
• Toyota Prius Plug-In

It is ideal for replacing a worn or damaged radiator in these hybrid models, helping to maintain proper engine temperature and prevent overheating issues.

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 compromised radiator tanks
• Inadequate heat dissipation affecting hybrid system performance
• Replacement of original radiator after collision or wear

Installation Notes and Tips

When installing the Denso 221-3143 radiator, ensure all hose connections match the 1.437-inch inlet and outlet diameters for a secure fit. Verify that the radiator core dimensions align with the vehicle’s mounting points to avoid fitment issues. Since this radiator does not include a transmission oil cooler, confirm if your vehicle requires a separate cooler installation. Proper coolant flushing and system bleeding are recommended to maintain optimal cooling system performance after installation.

Quality Assurance and Warranty

Denso radiators are manufactured to meet strict OEM standards, ensuring reliable performance and durability. The 221-3143 radiator undergoes rigorous quality control to provide consistent cooling efficiency. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.