CSF 2805 Radiator
OE Quality 60-Day Returns
CSF
 1 Row Plastic Tank Aluminum Core

CSF 2805 Radiator

Brand CSF 2805
Box Height (in) 5 11/16
Box Length (in) 30 7/8
Box Weight (lbs) 10
Box Width (in) 21 9/16
Cap Included No
Core Length 14 3/4
Core Material Aluminum
Core Thickness 7/8
Core Width 28 1/4
Csf Cap Number 4514
Down Flow Or Cross Flow Type Down Flow
Hazardous Material No
Inlet Diameter 1 5/16 Left
Inlet Length (in) 28 3/4
Inlet Width (in) 1 5/8
Oil Cooler (in) 14 3/4 (high-effeciency Concentric Type)
Outlet Diameter 1 5/16 Right
Outlet Length (in) 28 3/4
Outlet Width (in) 1 5/8
Radiator Core Row Quantity 1
Tank Material Plastic
Tech Note O.E.M. style Plastic tanks & Aluminum core.
Product line 1 Row Plastic Tank Aluminum Core
Fits Lexus · 5 vehicles

OE-style construction. Plastic tanks and an aluminum core match the original design.

Down-flow design. Promotes efficient coolant movement through the radiator.

Wind tunnel tested. Validated for cooling performance in lab testing.

Cross-references Anchor 2356, APDI 8012356 and DENSO Auto Parts 221-3120 for the same application. See all 7.

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CSF 2805 Radiator for Lexus IS300

CSF 2805 is an OE-style radiator built with a plastic tank and aluminum core for the 2001-2005 Lexus IS300. It is designed for direct replacement service in down-flow cooling systems and uses the factory-style inlet and outlet layout for straightforward fitment.

Key Features

  • OE-style plastic tank and aluminum core construction
  • 1-row core design with 7/8 in. core thickness
  • Down-flow radiator layout
  • Core width: 28 1/4 in.; core length: 14 3/4 in.
  • Inlet diameter: 1 5/16 in. left; outlet diameter: 1 5/16 in. right
  • Oil cooler section: 14 3/4 in. high-efficiency concentric type
  • Cap not included
  • CSF part number 2805

Product Details

CSF builds this radiator to match the OE-style plastic tank and aluminum core configuration used on the Lexus IS300. The design supports factory-style cooling system service while maintaining the original down-flow arrangement, inlet and outlet placement, and overall core dimensions. CSF 2805 is part of the brand’s 1 Row Plastic Tank Aluminum Core line, which focuses on application-specific radiator construction for vehicle cooling system replacement.

CSF has manufactured radiators for decades and supplies a broad range of vehicle applications worldwide. The company states that its radiators are engineered and validated through wind tunnel testing and produced in ISO/TSO-certified facilities. This part cross-references Spectra Premium CU2356 for the same application.

Common Cooling System Issues

  • Leaking radiator tanks or seams
  • Restricted coolant flow from an aging core
  • Overheating caused by reduced heat transfer
  • Damaged inlet or outlet connections
  • Oil cooler section wear in the radiator assembly

Installation Notes

Fits 2001-2005 Lexus IS300, N/A. Verify the radiator dimensions, inlet and outlet orientation, and cap specification before installation. This application uses a Micro, 16 psi cap; CSF cap number 4514 is listed for reference, and the cap is not included with this radiator.

Quality Assurance

CSF manufactures radiators to high-performance standards and validates cooling performance during development. The brand’s long production history and broad OE-style catalog support consistent replacement quality for Lexus IS300 cooling system service.

Related reading

This part fits 5 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2005LexusIS3003.0LL6N/AOE Style Design; Use Micro, 16 psi Cap; 1 Row Plastic Tank Aluminum Core
2004LexusIS3003.0LL6N/AOE Style Design; Use Micro, 16 psi Cap; 1 Row Plastic Tank Aluminum Core
2003LexusIS3003.0LL6N/AOE Style Design; Use Micro, 16 psi Cap; 1 Row Plastic Tank Aluminum Core
2002LexusIS3003.0LL6N/AOE Style Design; Use Micro, 16 psi Cap; 1 Row Plastic Tank Aluminum Core
2001LexusIS3003.0LL6N/AOE Style Design; Use Micro, 16 psi Cap; 1 Row Plastic Tank Aluminum Core
Directly replaces or cross-references 7 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Anchor — 2356APDI — 8012356DENSO Auto Parts — 221-3120Spectra Premium — CU235616400 - 4656016400-46561LX3010105