Part #: 3426

CSF 3426 Radiator

1 Row Plastic Tank Aluminum Core
⚙️ 8 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦1 Row Plastic Tank Aluminum Core
🚗Fitment: Jeep, TJ and Wrangler
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of CSF 1 Row Plastic Tank Aluminum Core Radiator

The CSF 1 Row Plastic Tank Aluminum Core Radiator (Part Number 3426) is engineered for Jeep TJ and Wrangler models. Designed with a durable aluminum core and plastic tanks, this radiator offers reliable cooling performance tailored for these vehicles.

  • Core thickness: 1 1/4 inches
  • Core width: 19 11/16 inches
  • Core length: 18 1/8 inches
  • Aluminum core material with plastic tanks
  • Down flow design for efficient coolant circulation
  • Inlet diameter: 1 1/4 inches (right side)
  • Outlet diameter: 1 1/2 inches (left side)
  • Single core row configuration
  • Includes a high-efficiency 12-inch plate type oil cooler with quick-connect fittings

Details on the 1 Row Plastic Tank Aluminum Core Product Line

The CSF 1 Row Plastic Tank Aluminum Core line features radiators constructed with OEM-style plastic tanks combined with a robust aluminum core. This design balances weight and durability while maintaining effective heat dissipation. The inclusion of a quick-connect oil cooler enhances cooling efficiency, making it suitable for Jeep TJ and Wrangler vehicles requiring reliable temperature management under various driving conditions.

Technical Description and Specifications

This radiator features a 1 1/4 inch thick aluminum core measuring 19 11/16 inches wide and 18 1/8 inches long. The down flow design promotes effective coolant flow from the inlet on the right side (1 1/4 inch diameter) to the outlet on the left side (1 1/2 inch diameter). The single core row configuration supports efficient heat exchange while maintaining a compact profile. The plastic tanks reduce weight and resist corrosion, complementing the aluminum core's thermal properties. Additionally, the integrated 12-inch high-efficiency plate type oil cooler with quick-connect fittings supports engine oil temperature regulation.

Compatible Applications and Common Issues Addressed

  • Replacement for worn or leaking radiators in Jeep TJ and Wrangler models
  • Resolves overheating caused by inefficient or damaged cooling systems
  • Addresses coolant leaks from cracked plastic tanks or corroded cores
  • Improves engine oil cooling with integrated oil cooler for enhanced performance
  • Suitable for vehicles requiring OEM-style radiator replacements with durable materials

Installation Notes and Tips

  • Ensure compatibility with Jeep TJ and Wrangler models before installation
  • Check inlet and outlet hose diameters (1 1/4 inch right inlet, 1 1/2 inch left outlet) for proper fit
  • Verify down flow radiator orientation during installation for optimal coolant circulation
  • Use appropriate coolant and follow vehicle manufacturer guidelines when refilling
  • Inspect and replace radiator cap separately as this product does not include a cap

Quality Assurance and Warranty Information

The CSF 1 Row Plastic Tank Aluminum Core Radiator (Part Number 3426) is manufactured to meet OEM standards for fit and function. It is constructed without hazardous materials and includes a high-efficiency oil cooler for added reliability. Warranty details should be confirmed with the distributor or manufacturer, as they may vary by region.

BrandCSF
Part Number3426
Position1 Row Plastic Tank Aluminum Core
Box Height (in)5 1/16
Box Length (in)24 15/16
Box Weight (lbs)15
Box Width (in)27 5/16
Cap IncludedNo
Core Length18 1/8
Core MaterialAluminum
Core Thickness1 1/4
Core Width19 11/16
Csf Cap Number4539
Down Flow Or Cross Flow TypeDown Flow
Hazardous MaterialNo
Inlet Diameter1 1/4 Right
Inlet Length (in)20 3/16
Inlet Width (in)1 15/16
Oil Cooler (in)12 (high-efficiency Plate Type)
Outlet Diameter1 1/2 Left
Outlet Length (in)20 3/16
Outlet Width (in)1 15/16
Radiator Core Row Quantity1
Tank MaterialPlastic
Tech NoteO.E.M. style Plastic tanks & Aluminum core;with quick-connect oil cooler fittings.

This part fits 8 vehicles. Search below:

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

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

21022760284155037653 AC8012841CH3010329CU2841

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.