Toyota 4Runner (1996-2002) CSF Heavy-Duty All-Aluminum Performance Radiator
The 3rd Generation Toyota 4Runner is a legendary off-road platform, but as these vehicles age-and are outfitted with larger tires and heavy gear-the factory cooling system can become a weak point. The CSF Heavy-Duty All-Aluminum Radiator is engineered to eliminate the "Pink Milkshake" risk of factory radiators while providing superior thermal management for demanding trails, towing, and high-temperature environments.
Performance Engineering
- Advanced B-Tube Technology: CSF's exclusive B-Tube design increases heat transfer surface area by 15% compared to standard oval tubes, ensuring faster cooling under load.
- Massive 42MM Core: A 2-row, ultra high-performance aluminum core significantly increses fluid capacity and heat dissipation over the stock unit.
- High Efficiency Fins: Features 6.5MM tall multi-louvered fins that maximize airflow through the core, even when traveling at low speeds during technical crawls.
- Heavy-Duty Internal Trans Cooler: Includes a built-in, 5-plate high-performance transmission oil cooler. This is a vital upgrade for vehicles with oversized tires, as it manages the extra heat generated by altered gear ratios.
Built for the Trail
- TIG-Welded Construction: Unlike OEM radiators while failure-prone plastic tanks crimped to the core, the CSF is 100% all aluminum. TIG-welded seams ensure maximum strength and vibration resistance.
- Drop-In Fitment: A true plug-and-play solution. This radiator utilizes OEM mounting points and inlet/outlet locations, requiring zero cutting, trimming, or modifications.
- Complete Seal: CSF includes pre-cut double-sided adhesive foam strips to perfectly seal your factory fan shroud to the new core, maximizing fan pull efficiency.
| Feature | Specification |
| Core Design | 2-Row 42MM Heavy-Duty Aluminum |
| Technology | Exclusive CSF B-Tube & Multi-Louvered Fins |
| Transmission Coolor | Integrated 5-Plate High-Performance Cooler |
| Finish | Smooth Satin Aluminum |
| Testing | Individually Leak and Pressure Tested |
| Warranty | 2-Year Limited Warranty |
Installation & Maintenance Note
- Vehicle Compatibility: Fits all 1996-2002 4Runner models with the 2.7L (3RZ-FE) or 3.4L (5VZ-FE) engines.
- Coolant Choice: To maintain the longevity of the aluminum core, always use high-quality Toyota Red or Pink (LLC/SLLC) coolant mixed with distilled water.
- Transmission lines: Ensure your factory transmission cooler lines are in good condition. Replacing them during this install is recommended to ensure a 100% leak-free system.
| Note: Images are for illustration purposes only. Images may not represent the product listed. Please contact customer service with any questions or concerns: 1-928-505-2501. |
by Turn 14
- 1996-2002 Toyota 4Runner 3.4L
- 1996-2000 Toyota 4Runner 2.7L