CSF 3119 Radiator

CSF 3119 Radiator for Lexus GS430

The CSF 3119 is an OE-style radiator built for 2001-2005 Lexus GS430 applications. It uses a 1-row aluminum core with plastic tanks to match the original cooling system layout and support consistent heat transfer.

CSF’s radiator line is engineered to high-performance standards and validated through wind-tunnel testing. With broad manufacturing coverage and long-running global production, the CSF 3119 reflects a focused replacement solution for the Lexus GS430 cooling system.

Key Features

• 1-row down-flow radiator design
• Aluminum core with plastic tanks
• Core thickness: 5/8 in.
• Core size: 29 7/8 in. wide x 15 3/4 in. long
• Inlet: 1 1/2 in. left
• Outlet: 1 1/2 in. right
• OE-style plastic tank and aluminum core construction
• Oil cooler: 14 3/4 in. high-efficiency concentric type

Detailed Description

Built for the 2001-2005 Lexus GS430, CSF part number 3119 is a direct-fit radiator designed around the original equipment layout. The down-flow configuration, left-side inlet, right-side outlet, and 1-row core help maintain the factory-style cooling path, while the aluminum core and plastic tanks provide the construction commonly used in OE replacement radiators. This CSF 3119 radiator is a practical choice for Lexus GS430 owners replacing a leaking, clogged, or heat-affected radiator.

CSF manufactures a wide range of radiators for leading vehicle brands, and this product line is built to meet demanding cooling requirements. If you are searching for a Lexus GS430 radiator replacement, CSF 3119 offers the correct fitment profile and the dimensions needed for a proper OE-style service part.

This part cross-references APDI 8012541 for the same application.

What It Helps Address

• Coolant leaks from a cracked or aging radiator tank
• Restricted coolant flow caused by internal buildup
• Overheating from reduced heat dissipation
• Cooling system service on a 2001-2005 Lexus GS430
• Replacement of a damaged OE-style radiator assembly

Installation Notes and Tips

Fits 2001-2005 Lexus GS430, N/A. Verify inlet and outlet orientation, core dimensions, and oil cooler connection points before installation. The application notes specify use of a Micro, 16 psi cap; cap included is not listed for this part. Confirm all hose and mounting interfaces match the vehicle before final assembly.

Quality Assurance

CSF states that its factories are ISO/TSO certified and that its radiators are engineered and wind-tunnel tested for cooling performance validation. Part number 3119 is built as an OE-style replacement radiator for the Lexus GS430 cooling system.