Denso 221-3165 Radiator

Overview of Denso Radiator for Lexus RX350

The Denso 221-3165 radiator is engineered specifically for the Lexus RX350, providing reliable cooling performance. Designed with precise core dimensions and integrated transmission oil cooler, this radiator supports optimal engine temperature management.

• Core Height: 26.5620 inches
• Core Width: 18.8750 inches
• Core Thickness: 0.8750 inches
• Inlet Diameter: 1.5 inches
• Outlet Diameter: 1.5 inches
• Includes Transmission Oil Cooler

Detailed Radiator Specifications

This Denso radiator (part number 221-3165) features a core height of 26.5620 inches and a width of 18.8750 inches, providing a substantial surface area for heat dissipation. The core thickness of 0.8750 inches ensures efficient coolant flow and heat exchange. Both the inlet and outlet diameters measure 1.5 inches, compatible with the Lexus RX350's cooling system hoses. The integrated transmission oil cooler enhances the radiator’s functionality by helping maintain transmission fluid temperature, which is critical for transmission longevity and performance.

Compatible Vehicles and Applications

This radiator is compatible with the Lexus RX350 model, designed to meet the specific cooling requirements of this vehicle. The Denso 221-3165 radiator is suitable for replacing OEM radiators that match these dimensions and features.

• Overheating issues due to radiator core damage or clogging
• Coolant leaks from radiator core or connections
• Transmission fluid overheating affecting transmission performance
• Reduced engine cooling efficiency impacting vehicle operation
• Corrosion or physical damage to the existing radiator

Installation Notes and Tips

When installing the Denso 221-3165 radiator on a Lexus RX350, ensure all hose connections match the 1.5-inch inlet and outlet diameters for a secure fit. Properly flush the cooling system before installation to prevent contamination. Verify the transmission oil cooler lines are correctly connected to maintain transmission fluid cooling. Use manufacturer-recommended coolant and follow torque specifications for mounting hardware to avoid leaks or damage.

Quality Assurance and Warranty

Denso radiators are manufactured to meet strict quality standards, ensuring durability and reliable performance. The 221-3165 radiator undergoes rigorous testing for leak resistance and thermal efficiency. While specific warranty details may vary, Denso typically offers coverage against defects in materials and workmanship. Refer to the product documentation or manufacturer for exact warranty terms.