CSF 03-09 Toyota 4Runner / 06-14 Fj Cruiser Heavy Duty Aluminum Radiator

CSF’s 2003-2009 Toyota 4Runner and 2006-2014 FJ Cruiser Heavy-Duty All-Aluminum Radiator is engineered to provide optimal cooling performance for your vehicle. With over 50 years of experience in radiator manufacturing, CSF stands as a trusted name for keeping your engine cool and ensuring your FJ Cruiser operates at its peak. This radiator is designed to excel in both on-road and off-road conditions, making it an essential component for off-road enthusiasts, overlanders, and adventurers. Featuring a robust 2-Row core, the CSF radiator incorporates the exclusive B-Tube Technology, which sets it apart from conventional radiators. Rather than utilizing the standard oval-shaped "O" type tubes, CSF employs a specially engineered "B" tube that is meticulously formed and brazed at the seams. This design allows for the use of thinner and lighter aluminum material, enhancing cooling efficiency while maintaining superior strength compared to traditional welded tubes. The inlet positioned in the middle of the tube optimizes heat transfer surface area by approximately 15%, offering the performance of two smaller tubes in the same space. The innovative "B-tube" design facilitates dual liquid laminar flow, improving coolant circulation and heat dissipation. In addition, CSF utilizes ultra-efficient multi-louvered fins, precisely aligned to maximize airflow through the radiator core. Each fin specification is rigorously measured and tested in wind-tunnel labs to ensure maximum heat rejection efficiency for the application. The CSF Heavy-Duty All-Aluminum Radiator is designed as a true "Drop-in fit," requiring no modifications for installation. OE-style brackets are CNC machined and welded to provide unparalleled durability. Inlet and outlet connections are engineered to match OEM specifications, allowing for the reuse of OEM hoses or aftermarket options. Whether tackling tough trails, towing heavy loads, or cruising through daily commutes, trust the cooling experts at CSF for the highest quality, best-performing, and most reliable radiators available.