CSF 3rd Gen Toyota 4Runner Heavy-Duty All-Aluminum Radiator

The 3rd Gen Toyota 4Runner has established itself as a benchmark in the off-road vehicle segment, renowned for its durability and versatility. Since its inception, this generation has been favored by enthusiasts who demand both reliability and performance in challenging terrains. Despite the passage of over two decades, the 3rd Gen 4Runner continues to maintain a strong presence on roads and trails alike, a testament to its enduring engineering. However, as these vehicles age, certain components—particularly those supporting the engine—may benefit from enhancements to maintain optimal performance under increased stress. Recognizing this need, CSF has engineered the Heavy-Duty All-Aluminum Radiator specifically for the 1996-2002 Toyota 4Runner models. This radiator is designed to address the limitations of the original equipment manufacturer (OEM) cooling system, especially when the vehicle is subjected to demanding conditions such as larger tire installations and rigorous off-road use. While the OEM cooling system is adequate for standard driving, it may struggle to dissipate heat effectively under these intensified scenarios. The CSF radiator features a 2-row, 42mm thick aluminum core that significantly enhances fluid capacity and heat dissipation capabilities. This design ensures that the cooling system can handle increased thermal loads, thereby improving engine longevity and reliability. A key innovation incorporated into this radiator is CSF’s Exclusive B-Tube Technology, which optimizes heat transfer by approximately 15% compared to conventional oval welded tubes commonly found in other aluminum radiators. This advancement contributes to superior cooling efficiency and overall system performance. Complementing the core design are the multi-louvered fins, engineered to maximize airflow through the radiator. These 6.5mm tall fins increase surface area contact, facilitating more effective heat exchange and maintaining optimal engine temperatures even under strenuous conditions. The end tanks are constructed from high-grade aluminum and are TIG welded to the core, ensuring structural integrity and durability. This robust construction contrasts with the OEM’s plastic end tanks, which are prone to failure due to their weaker crimped attachment methods. Installation of the CSF radiator is straightforward and user-friendly, featuring a true plug-and-play “drop-in fit” design. This eliminates the need for any modifications, trimming, or cutting, preserving the vehicle’s original configuration and simplifying the upgrade process. To further enhance installation quality, CSF includes pre-cut double-sided adhesive foam strips that seal the fan shroud to the radiator, optimizing airflow efficiency and cooling performance. In addition to its superior cooling core, the CSF radiator integrates a heavy-duty, high-performance 5-plate transmission fluid cooler within the bottom tank. This built-in cooler connects seamlessly to the OEM transmission hoses and is engineered to manage the additional heat generated during towing, low-gear crawling, and operation with oversized tires. The transmission cooler’s robust design ensures transmission fluid temperatures remain within safe operating limits, thereby extending transmission life and maintaining vehicle reliability. It is important to understand the impact of oversized tires on vehicle performance. Increasing tire diameter effectively lowers the gear ratio, compelling the engine and transmission to exert more effort to maintain vehicle speed. This increased mechanical load generates additional heat, which the CSF radiator is expressly designed to accommodate, ensuring consistent cooling under these demanding conditions. Features 2-Row – 42mm Ultra-High-Performance Core providing enhanced fluid capacity and heat dissipation Cooling Tubes utilizing CSF’s Exclusive B-Tube Technology for approximately 15% improved heat transfer 6.5mm Tall Ultra Efficient Multi-Louvered Fins maximizing surface area contact and airflow CNC Machined Mounting Brackets and OEM Style Inlet/Outlet for precise fitment Built-in Heavy-Duty High-Performance 5-Plate Transmission Oil Cooler integrated into the bottom tank 100% All Aluminum TIG-Welded Construction ensuring durability and structural integrity Smooth Satin Finish for corrosion resistance and aesthetic appeal True Plug-and-Play “Drop-in Fit” Installation requiring no modifications or cutting Individually Leak and Pressure Tested to guarantee reliability and performance 2-Year Limited Warranty providing assurance of product quality Applications Year Range Make Chassis Code Model Trim Engine / Trans / Etc Notes 1996-2000 Toyota 3rd Gen 4Runner – 2.7L L4 – 1996-2002 Toyota 3rd Gen 4Runner – 3.4L V6 – 1996-2002 Toyota 3rd Gen 4Runner Limited 3.4L V6 – 1996-2002 Toyota 3rd Gen 4Runner SR5 3.4L V6 – OEM Part Numbers Toyota: 16410 AZ011 *AT & MT All Years Toyota: 16410-AZ011 *AT & MT All Years Toyota: 16410AZ011 *AT & MT All Years Toyota: 16400 75180 *AT & MT All Years Toyota: 16400-75180 *AT & MT All Years