CSF 3003 Radiator
OE Quality 60-Day Returns
CSF
 1 Row Plastic Tank Aluminum Core

CSF 3003 Radiator

Brand CSF 3003
Core Thickness 5/8
Core Width 27 1/16
Core Material Aluminum
Tank Material Plastic
Core Length 13 3/8
Inlet Diameter 1 1/2 centre
Outlet Diameter 1 1/2 left
Down Flow Or Cross Flow Type Down flow
Radiator Core Row Quantity 1
Cap Included No
Box Height (in) 4 14/16
Box Length (in) 30 7/8
Box Weight (lbs) 8
Box Width (in) 21
Csf Cap Number 4503
Hazardous Material No
Inlet Length (in) 27 13/16
Inlet Width (in) 1 5/8
Oil Cooler (in) 14 3/4 (high-effeciency concentric type)
Outlet Length (in) 27 13/16
Outlet Width (in) 2
Tech Note O.e.m. style plastic tanks & aluminum core.
Product line 1 Row Plastic Tank Aluminum Core
Fits Subaru · 10 vehicles

OE-style construction. Plastic tanks and an aluminum core mirror original equipment design.

1-row core. A single-row layout helps keep cooling efficient and compact.

Wind tunnel tested. Engineered and validated for cooling performance in lab conditions.

Cross-references Anchor 2464, APDI 8012464 and Bosch 13051 for the same application. See all 10.

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CSF 3003 Radiator for Subaru Impreza

CSF 3003 is an OE-style radiator built with a plastic tank and aluminum core for Subaru Impreza applications from 2002 through 2007. It is designed for direct-fit cooling system service on the Subaru Impreza, including Sport Wagon coverage noted in the fitment data.

Key Features

  • OE-style plastic tank and aluminum core construction
  • 1-row down-flow design
  • Core thickness: 5/8 in.
  • Core width: 27 1/16 in.; core length: 13 3/8 in.
  • Inlet diameter: 1 1/2 center; outlet diameter: 1 1/2 left
  • High-efficiency concentric-type oil cooler: 14 3/4 in.
  • Cap not included; CSF cap number 4503
  • Brand line: 1 Row Plastic Tank Aluminum Core

Product Details

This CSF radiator is part of the brand’s 1 Row Plastic Tank Aluminum Core line, which focuses on OE-style replacement construction with a plastic tank and aluminum core layout. CSF manufactures radiators for a wide range of vehicle applications and validates cooling performance through lab testing, including wind tunnel evaluation. Part number 3003 is built for Subaru Impreza cooling system replacement where the original radiator uses a down-flow configuration and OE-style tank design.

Fits 2002-2007 Subaru Impreza, N/A. Fits 2002-2004 Subaru Impreza, N/A, Sport Wagon.

Common Problems This Radiator Addresses

  • Cracked or leaking radiator tanks
  • Restricted coolant flow from an aging core
  • Overheating caused by reduced heat transfer
  • Corrosion or deterioration in the original radiator assembly
  • Cooling system service needs on Subaru Impreza models

Installation Notes and Tips

Verify inlet and outlet orientation before installation: inlet is 1 1/2 center and outlet is 1 1/2 left. This radiator is a down-flow design and does not include a cap. Confirm the vehicle uses the OE-style plastic tank and aluminum core layout before ordering. Part number 3003 is listed for 2002-2007 Subaru Impreza applications, with Sport Wagon coverage for 2002-2004 models.

Quality Assurance

CSF states that its factories are ISO/TSO certified and that its radiators are engineered to high-performance standards. The brand also notes long-term global production experience and cooling-performance validation testing for its radiator designs.

Related reading

This part fits 10 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelBody TypeLitersCylindersPositionNotes
2007SubaruImprezaOutback Sport—2.5LH4N/AOE style design with Mini 16 psi cap.; 1 Row Plastic Tank Aluminum Core
2006SubaruImprezaOutback Sport—2.5LH4N/AOE style design with Mini 16 psi cap.; 1 Row Plastic Tank Aluminum Core
2005SubaruImprezaOutback Sport—2.5LH4N/AOE style design with Mini 16 psi cap.; 1 Row Plastic Tank Aluminum Core
2005SubaruImprezaRS—2.5LH4N/AOE style design with Mini 16 psi cap.; 1 Row Plastic Tank Aluminum Core
2004SubaruImprezaRS—2.5LH4N/AOE style design with Mini 16 psi cap.; 1 Row Plastic Tank Aluminum Core
2004SubaruImprezaTSWagon2.5LH4N/AOE Style Design; Use Mini, 16 psi Cap; Sport Wagon; 1 Row Plastic Tank Aluminum Core
2003SubaruImprezaTSWagon2.5LH4N/AOE Style Design; Use Mini, 16 psi Cap; Sport Wagon; 1 Row Plastic Tank Aluminum Core
2003SubaruImprezaRS—2.5LH4N/AOE style design with Mini 16 psi cap.; 1 Row Plastic Tank Aluminum Core
2002SubaruImprezaRS—2.5LH4N/AOE style design with Mini 16 psi cap.; 1 Row Plastic Tank Aluminum Core
2002SubaruImprezaTSWagon2.5LH4N/AOE Style Design; Use Mini, 16 psi Cap; Sport Wagon; 1 Row Plastic Tank Aluminum Core
Directly replaces or cross-references 10 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Anchor — 2464APDI — 8012464Bosch — 13051Spectra Premium — CU246445111 FE05045111 FE05145111 FE08045111 FE081SU3010139SU3010140