CSF 3426 Radiator
OE Quality 60-Day Returns
CSF
 1 Row Plastic Tank Aluminum Core

CSF 3426 Radiator

Brand CSF 3426
Box Height (in) 5 1/16
Box Length (in) 24 15/16
Box Weight (lbs) 15
Box Width (in) 27 5/16
Cap Included No
Core Length 18 1/8
Core Material Aluminum
Core Thickness 1 1/4
Core Width 19 11/16
Csf Cap Number 4539
Down Flow Or Cross Flow Type Down Flow
Hazardous Material No
Inlet Diameter 1 1/4 Right
Inlet Length (in) 20 3/16
Inlet Width (in) 1 15/16
Oil Cooler (in) 12 (high-efficiency Plate Type)
Outlet Diameter 1 1/2 Left
Outlet Length (in) 20 3/16
Outlet Width (in) 1 15/16
Radiator Core Row Quantity 1
Tank Material Plastic
Tech Note O.E.M. style Plastic tanks & Aluminum core;with quick-connect oil cooler fittings.
Product line 1 Row Plastic Tank Aluminum Core
Fits Jeep · 8 vehicles

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

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

Quick-connect fittings. Includes oil cooler connections for easier installation.

Cross-references Anchor 2841, FEL-PRO 2102 and Gates 2760 for the same application. See all 7.

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OE-Style Cooling for Jeep TJ and Wrangler

CSF 3426 is a direct-fit radiator built for 2005-2006 Jeep TJ and 2005-2006 Jeep Wrangler applications. It uses an OE-style plastic tank and aluminum core design with a down-flow layout, making it a practical replacement for worn or leaking factory cooling components.

  • Fits 2005-2006 Jeep TJ, N/A
  • Fits 2005-2006 Jeep Wrangler, N/A
  • 1-row radiator design with aluminum core and plastic tanks
  • Down-flow construction for factory-style cooling layout
  • Inlet diameter: 1 1/4 right; outlet diameter: 1 1/2 left
  • Integrated 12 in. high-efficiency plate-type oil cooler with quick-connect fittings
  • Cap not included; uses CSF cap number 4539

Product Details

CSF 3426 is engineered as an OE-style replacement radiator for Jeep TJ and Jeep Wrangler models from 2005-2006. The 1 1/4 in. thick aluminum core is paired with plastic tanks to match the original cooling system layout, while the down-flow configuration supports factory routing and fitment. The built-in plate-type oil cooler adds an important cooling function for vehicles equipped with the correct factory-style setup. CSF manufactures radiators to high-performance standards and validates cooling performance through laboratory wind-tunnel testing. This part cross-references Spectra Premium CU2841 for the same application.

Common Replacement Reasons

  • Coolant leaks from aging plastic tanks or core seams
  • Overheating caused by reduced radiator efficiency
  • Damaged inlet or outlet connections
  • Oil cooler performance loss in factory-equipped cooling systems
  • Corrosion or internal restriction in the original radiator

Installation Notes

Verify radiator dimensions, inlet and outlet orientation, and oil cooler connection style before installation. This radiator is designed for OE-style fitment on 2005-2006 Jeep TJ and Jeep Wrangler models. Use the specified 18 psi small cap where required, and confirm the cooling system is clean before installing the replacement unit.

Quality Assurance

CSF manufactures radiators in ISO/TSO-certified facilities and supplies a broad range of cooling products for global vehicle applications. The brand has produced radiators for more than 50 years and validates designs through laboratory testing for cooling performance.

Related reading

This part fits 8 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2006JeepTJ2.4LL4N/AOE Style Design; Use Small, 18 psi Cap; 1 Row Plastic Tank Aluminum Core
2006JeepTJ4.0LL6N/AOE Style Design; Use Small, 18 psi Cap; 1 Row Plastic Tank Aluminum Core
2006JeepWrangler2.4LL4N/AOE Style Design; Use Small, 18 psi Cap; 1 Row Plastic Tank Aluminum Core
2006JeepWrangler4.0LL6N/AOE Style Design; Use Small, 18 psi Cap; 1 Row Plastic Tank Aluminum Core
2005JeepTJ4.0LL6N/AOE Style Design; Use Small, 18 psi Cap; 1 Row Plastic Tank Aluminum Core
2005JeepTJ2.4LL4N/AOE Style Design; Use Small, 18 psi Cap; 1 Row Plastic Tank Aluminum Core
2005JeepWrangler4.0LL6N/AOE Style Design; Use Small, 18 psi Cap; 1 Row Plastic Tank Aluminum Core
2005JeepWrangler2.4LL4N/AOE Style Design; Use Small, 18 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 — 2841FEL-PRO — 2102Gates — 2760Spectra Premium — CU2841801284155037653 ACCH3010329