CSF 5th Gen Toyota 4Runner High-Performance All-Aluminum Radiator

With over five decades of specialized experience in radiator manufacturing, CSF stands as a leader in delivering cooling solutions that meet the highest standards of quality and performance. The CSF 5th Gen Toyota 4Runner High-Performance All-Aluminum Radiator is engineered to ensure optimal engine cooling, enhancing the reliability and longevity of your vehicle under a variety of demanding conditions. This radiator is meticulously designed for both on-road and off-road applications, making it an essential upgrade for off-road enthusiasts, overlanders, and adventurers who require dependable cooling performance in challenging environments. The core of this radiator features a 2-Row design utilizing CSF’s exclusive B-Tube Technology. Unlike conventional oval “O” type tubes, CSF employs a uniquely engineered “B”-shaped tube that is seam brazed for superior strength and durability. The innovative “B-Tube” design allows the use of thinner and lighter aluminum material without compromising structural integrity, resulting in enhanced cooling efficiency. This design increases the heat transfer surface area by approximately 15% compared to standard tubes, effectively doubling the cooling capacity within the same spatial constraints. Additionally, the “B-Tube” facilitates dual liquid laminar flow, further optimizing heat dissipation. Complementing the advanced tubing is CSF’s ultra-efficient multi-louvered fin design. These fins, precisely aligned and measured for each specific application, maximize airflow through the radiator core. The fin dimensions and configurations have been rigorously tested in CSF’s wind-tunnel laboratory to ensure maximum heat rejection efficiency, contributing to superior engine temperature management. The CSF radiator is a true “Drop-in fit” replacement, requiring no modifications for installation. All brackets are CNC machined and welded to OE specifications, ensuring exceptional fitment and long-term durability. The inlet and outlet connections are designed to match the original equipment manufacturer (OEM) standards, allowing seamless integration with existing OEM or aftermarket hoses. Whether your driving involves rigorous off-roading, heavy towing, or everyday commuting, the CSF 5th Gen Toyota 4Runner radiator delivers dependable cooling performance that meets professional standards. Trust in CSF’s commitment to quality and innovation to maintain your vehicle’s engine temperature within optimal ranges, thereby protecting critical components and enhancing overall vehicle performance. Features 2 Row, 42mm Ultra High-Performance Core Featuring CSF’s Exclusive B-Tube Technology Core Features Ultra-Efficient, 6.5mm Tall Fins with a Multi-Louvered Design for Maximum Surface Area Contact Upgraded 4-Plate Automatic Transmission Cooler Built Into Bottom End Tank Individually Leak and Pressure Tested to Ensure Reliability CNC Machined Mounting Brackets for Superb Fit and Durability 100% All Aluminum TIG-Welded Construction for Strength and Longevity True “Drop-In-Fit” Design Requires No Modifications to Install 1 Hour “Mirror Finish” Hand Polish for Corrosion Resistance and Aesthetic Quality 2 Year Limited Warranty for Peace of Mind Applications Year Range Make Chassis Code Model Trim Engine / Trans / Etc Notes 2010 Toyota 5th Gen 4Runner – 2.7L L4 – 2010-2024 Toyota 5th Gen 4Runner – 4L V6 – OEM Part Numbers Toyota: 16400 31B70 Toyota: 16400-31B70 Toyota: 1640031B70 Toyota: 16410 AZ030 Toyota: 16410-AZ030 Toyota: 16410AZ030 Toyota: 16400 31710 Toyota: 16400-31710 Toyota: 1640031710 Toyota: 16400 31711 Toyota: 16400-31711 Toyota: 1640031711 Toyota: 16400 31712 Toyota: 16400-31712 Toyota: 1640031712 Toyota: 16400 31713 Toyota: 16400-31713 Toyota: 1640031713 Warranty Cooling Systems and Flexibles, Inc. (CSF) guarantees the performance and durability of its High-Performance Cooling Systems under normal use and service conditions to the original purchaser of the vehicle in which the product was installed. This warranty reflects CSF’s commitment to quality and customer satisfaction. For comprehensive warranty information, please visit our Warranty Page. SKU# 7085 Warranty Term: 2 years