CSF Aluminum Radiator 42mm 2-Row with B-Tube Technology

CSF Aluminum Radiator 42mm 2-Row with B-Tube Technology Upgrade cooling performance with the CSF 42mm 2-row aluminum radiator featuring exclusive B-Tube Technology. Designed for demanding driving and off-road use, this high-capacity core improves heat dissipation and keeps engine temperatures stable under heavy load. 42mm 2-row aluminum core increases fluid capacity and thermal mass for longer, more consistent cooling. B-Tube Technology boosts heat transfer by ~15% versus conventional oval welded tubes, improving overall efficiency. Multi-louvered fins maximize airflow through the core for superior heat rejection, especially at lower off-road speeds where fan airflow dominates. Durable TIG-welded aluminum end tanks provide greater strength and reliability compared to OEM crimped-plastic designs that are prone to failure. Plug-and-play fitment — true drop-in replacement requiring no trimming, cutting, or modifications for fast, worry-free installation. Whether you're tackling trails, towing, or commuting in hot climates, the CSF 42mm radiator delivers improved cooling capacity, resistance to clogging from dust and mud, and long-term durability. Stay cool, protect your engine, and enjoy reliable performance mile after mile.