CSF 3703 Radiator
OE Quality 60-Day Returns
CSF
 1 Row Plastic Tank Aluminum Core

CSF 3703 Radiator

Brand CSF 3703
Box Height (in) 4 7/8
Box Length (in) 32 7/16
Box Weight (lbs) 9
Box Width (in) 19 3/16
Cap Included No
Core Length 26 3/8
Core Material Aluminum
Core Thickness 7/8
Core Width 15 7/8
Down Flow Or Cross Flow Type Cross Flow
Hazardous Material No
Inlet Diameter 1 1/2 Left
Inlet Length (in) 16 9/16
Inlet Width (in) 1 3/8
Outlet Diameter 1 1/2 Right
Outlet Length (in) 16 9/16
Outlet Width (in) 1 3/8
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 Toyota · 13 vehicles

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

Cross-flow design. Promotes efficient coolant flow through the radiator.

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

Cross-references Anchor 2891, APDI 8012891 and Bosch 13383 for the same application. See all 11.

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CSF 3703 Radiator for Toyota RAV4

The CSF 3703 is an OE-style radiator built with a plastic tank and aluminum core for Toyota RAV4 cooling system service. It is engineered for direct replacement use on select 2006-2018 Toyota RAV4 models, including Japan-built 2016-2018 vehicles and 2013-2015 models without the towing package.

Key Features

  • Brand line: 1-row plastic tank aluminum core construction
  • Cross-flow radiator design for efficient coolant routing
  • Aluminum core with plastic tanks for OE-style fit and function
  • Core thickness: 7/8 in.
  • Core dimensions: 26 3/8 in. length x 15 7/8 in. width
  • Inlet diameter: 1 1/2 in. left
  • Outlet diameter: 1 1/2 in. right
  • Cap not included
  • Part number: 3703

Product Details

CSF manufactures radiators to high-performance standards and validates cooling performance through laboratory wind tunnel testing. The 3703 follows an OEM-style plastic tank and aluminum core layout, making it a practical replacement radiator for Toyota RAV4 cooling system repair. This part cross-references APDI 8012891 and DENSO Auto Parts 221-3116 for the same application.

What This Radiator Helps Address

  • Coolant leaks from a damaged or aging radiator
  • Overheating caused by restricted or inefficient heat transfer
  • Cracked plastic tanks or weakened radiator seams
  • Corrosion or internal wear in the original cooling core
  • Cooling performance loss in a Toyota RAV4 radiator replacement

Installation Notes and Tips

Fits 2006-2012 Toyota RAV4, N/A. Fits 2013-2015 Toyota RAV4, N/A, w/o towing package. Fits 2016-2018 Toyota RAV4, N/A, Japan built. Verify inlet and outlet orientation before installation: inlet is left and outlet is right. Confirm radiator dimensions and vehicle configuration against the original unit before installation.

Quality Assurance

CSF radiators are produced in ISO/TSO certified factories and built for global OE-style replacement use. The brand reports more than 50 years of radiator manufacturing experience and over 30 million units sold worldwide.

Related reading

This part fits 13 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2018ToyotaRAV42.5LL4N/AJapan Built; 1 Row Plastic Tank Aluminum Core
2017ToyotaRAV42.5LL4N/AJapan Built; 1 Row Plastic Tank Aluminum Core
2016ToyotaRAV42.5LL4N/AJapan Built; 1 Row Plastic Tank Aluminum Core
2015ToyotaRAV42.5LL4N/Aw/o Towing Pkg; 1 Row Plastic Tank Aluminum Core
2014ToyotaRAV42.5LL4N/Aw/o Towing Pkg; 1 Row Plastic Tank Aluminum Core
2013ToyotaRAV42.5LL4N/Aw/o Towing Pkg; 1 Row Plastic Tank Aluminum Core
2012ToyotaRAV42.5LL4N/A1 Row Plastic Tank Aluminum Core
2011ToyotaRAV42.5LL4N/A1 Row Plastic Tank Aluminum Core
2010ToyotaRAV42.5LL4N/A1 Row Plastic Tank Aluminum Core
2009ToyotaRAV42.5LL4N/A1 Row Plastic Tank Aluminum Core
2008ToyotaRAV42.4LL4N/A1 Row Plastic Tank Aluminum Core
2007ToyotaRAV42.4LL4N/A1 Row Plastic Tank Aluminum Core
2006ToyotaRAV42.4LL4N/A1 Row Plastic Tank Aluminum Core
Directly replaces or cross-references 11 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Anchor — 2891APDI — 8012891Bosch — 13383DENSO Auto Parts — 221-3116Spectra Premium — CU2892Spectra Premium — CU289316400 - 2857016400-0V030CU2891TO3010304TO3010341