CSF 3820 Radiator

Overview of CSF 3820 Radiator for Lexus RX Models

The CSF 3820 radiator is designed specifically for Lexus RX350, RX350L, RX450h, and RX450hL models. Featuring a durable aluminum core paired with plastic tanks, this radiator offers reliable cooling performance tailored to your vehicle's specifications.

• Core thickness: 1 1/4 inches
• Core width: 29 11/16 inches
• Core length: 19 5/8 inches
• Aluminum core material with plastic tanks
• Down flow design with 1 row core
• Inlet and outlet diameter: 1 5/16 inches (left inlet, right outlet)
• High-efficiency plate type oil cooler included (14 3/4 inches)
• Cap not included; compatible with CSF cap number 4514

About the 1 Row Plastic Tank Aluminum Core Product Line

The CSF 1 Row Plastic Tank Aluminum Core line combines OEM-style plastic tanks with a robust aluminum core to provide efficient heat dissipation and corrosion resistance. This product line is engineered to meet the cooling demands of modern vehicles like the Lexus RX series, ensuring consistent engine temperature regulation under various driving conditions.

Detailed Product Description

The CSF 3820 radiator features a single-row aluminum core measuring 1 1/4 inches thick, 29 11/16 inches wide, and 19 5/8 inches long. Its down flow design facilitates effective coolant circulation from the top to the bottom of the radiator. The plastic tanks are designed to match OEM specifications, providing a secure fit and durability. Both the inlet and outlet have a diameter of 1 5/16 inches, positioned on the left and right sides respectively, to ensure proper hose connections. Additionally, the radiator includes a high-efficiency plate-type oil cooler measuring 14 3/4 inches, enhancing overall cooling performance for the engine and transmission systems.

Common Applications and Issues Addressed

• Replacement for leaking or cracked radiators in Lexus RX350, RX350L, RX450h, and RX450hL
• Resolves overheating caused by inefficient or damaged cooling components
• Addresses coolant flow restrictions due to clogged or corroded cores
• Improves engine temperature regulation for hybrid and gasoline Lexus RX models
• Supports proper oil cooling with integrated high-efficiency oil cooler

Installation Notes and Tips

When installing the CSF 3820 radiator, ensure compatibility with your Lexus RX model year and engine type. The radiator does not include a cap, so use the CSF cap number 4514 or an OEM equivalent. Verify hose connections match the 1 5/16 inch inlet and outlet diameters on the left and right sides. Properly bleed the cooling system after installation to avoid air pockets and ensure optimal coolant flow.

Quality Assurance and Warranty

CSF radiators are manufactured to meet OEM standards, using corrosion-resistant aluminum cores and durable plastic tanks. This radiator is free of hazardous materials and designed for long-term reliability. Warranty details should be confirmed with the distributor or manufacturer, as they may vary by region.