Heavy Duty All-Aluminum Radiator - (FJ Cruiser / 4Runner)
Heavy Duty All-Aluminum Radiator - (FJ Cruiser / 4Runner)
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Our Price: $399.95

Part Number: 1093103

Details Fitment

Heavy Duty All-Aluminum Radiator

(FJ Cruiser / 4Runner)

From the desert to the mountains, and where the turf meets the surf, Toyota’s FJ Cruiser was designed as the “go-anywhere SUV.” With its 4.0-liter V6 engine that puts out 260 horsepower and 271lb-ft torque, it has more than enough power to hit the trails, but still has the smooth look to be able to cruise PCH. Some of the earlier released models are coming of age, and the need to replace the original radiator is becoming increasingly apparent. CSF has developed another industry exclusive – a new all-aluminum high-performance radiator to keep the Toyota FJ Cruiser and 4Runner cool!

Many FJs are getting into the hands of off-road enthusiasts for its rugged yet quirky design, reliability, and off-road capabilities. The performance and aftermarket parts catalog for the FJ continues to grow, and whenever engine performance increases, the burden on the cooling system also rises. It’s one thing to drive a racecar and have overheating or leak issues on the track, where the safety team can easily tow you back to the pits. Getting stuck on a trail or in the desert in the middle of nowhere can be quite a challenge, as things can easily turn into a real-life episode of Man Vs. Wild with Bear Grylls.

CSF’s new radiator comes complete with CSF’s industry-leading and exclusive B-tube technology, that increases the heat dissipation by approximately 15% over regular tubes, as well as multi-louvered fins to maximize airflow through the radiator core. It’s 100% TIG-welded construction ensures a higher level of reliability and durability compared to the OEM plastic tanks, which may become brittle or susceptible to cracking over 5+ years of use (especially when driven in extreme driving conditions). Although the CSF unit has over 50% more capacity than the OEM unit (31mm 1-row B-Tube core versus 27mm 1-row core), it is still a “drop-in fit,” requiring no modifications to install – a true plug-and-play upgrade and replacement solution, topped off with CSF’s signature 1-hour mirror polish to make it pop! The Toyota FJ Cruiser radiator by CSF is the best you can get.

CSF’s high performance radiator is significantly thicker than the older OEM unit – allowing for more cooling capacity and better heat transfer efficiency.


  • 1-Row, 31mm Ultra-High Performance Radiator Core by CSF
  • CSF’s Exclusive B-Tube Technology and 6.5mm Tall Multi-Louvered Fins
  • 1-Hour Hand Polished Mirror Finish
  • CNC Machined Mounting Brackets
  • True “Drop-in Fit” With No Modifications Necessary

This product should not be used in a manner that violates Federal EPA Laws.

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Note: Images are for illustration purposes only. Images may not represent the product listed. Please contact customer service with any questions or concerns: 1-928-505-2501.

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