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

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

Unless explicitly stated otherwise, all products sold by R44 Performance Limited are designated RACE ONLY and are solely for competition or off-road use limited to racing formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, may violate local, state, and Federal laws. R44 Performance Limited does not implicitly or explicitly confirm the legality of using any products it sells on public roads; that is entirely the responsibility of the consumer.

It is the responsibility of the customer to check with all federal, state local and environmental laws before ordering and installing a product. R44 Performance Limited is not responsible for any fees, fines or costs that a customer may incur as a result of failing to check with federal, state, local or environmental laws before ordering and installing a product.

We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.

We totally understand if you're not certain a part will be compatible with your car, so we highly recommend contacting us here with your query. Our friendly sales team will then be in touch to confirm if this part is the correct part you are looking for.

All in stock products ship the same day if ordered before 2pm GMT

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We offer worldwide shipping on all products. If upon receiving your product you wish to return; we offer a 30-day returns policy. For our in-depth returns information please follow the link. "R44 Returns Policy

All of our products come with a standard warranty of 1-3 years. This is dependant on the type of product however. For more details please see our warranty page here.