Denso 221-3146 Radiator

Overview of the Denso Radiator for Toyota Highlander

The Denso radiator part number 221-3146 is engineered specifically for Toyota Highlander models, providing reliable cooling performance. Designed with precise core dimensions and integrated transmission oil cooler, this radiator supports efficient engine temperature regulation.

• Core Height: 18.6870 inches
• Core Width: 30.1870 inches
• Core Thickness: 1.0600 inches
• Inlet Diameter: 1.3750 inches
• Outlet Diameter: 1.3750 inches
• Includes Transmission Oil Cooler

Detailed Product Description

This Denso radiator (part number 221-3146) features a core height of 18.6870 inches and a width of 30.1870 inches, providing ample surface area for heat dissipation. The core thickness of 1.0600 inches ensures durability and efficient coolant flow. Both the inlet and outlet diameters measure 1.3750 inches, matching OEM specifications for seamless installation. The integrated transmission oil cooler enhances the cooling system by maintaining optimal transmission fluid temperature, which is critical for the Toyota Highlander's performance and longevity.

Compatible Vehicles and Applications

This radiator is compatible with Toyota Highlander models requiring a direct replacement radiator with transmission oil cooler integration. It is designed to meet the cooling demands of the Highlander's engine and transmission system, ensuring proper fit and function.

• Overheating issues due to radiator core damage or clogging
• Coolant leaks from cracked or corroded radiator cores
• Transmission 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 radiator 221-3146 on a Toyota Highlander, ensure all hose connections match the 1.3750 inch inlet and outlet diameters for a secure fit. Verify the transmission oil cooler lines are properly connected to maintain transmission fluid cooling. It is recommended to flush the cooling system before installation to prevent contamination. Use OEM or compatible coolant and follow torque specifications for mounting bolts to avoid leaks or damage.

Quality Assurance and Warranty

Denso radiators are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. The 221-3146 radiator undergoes rigorous quality control testing to verify core integrity and cooling efficiency. Warranty coverage details should be confirmed with the supplier or manufacturer, typically including protection against defects in materials and workmanship.