CAT 3300 / 336 Series Tube-and-Fin Radiator (SFENG-063)
The SFENG-063 is a heavy-duty tube-and-fin radiator engineered for Caterpillar 3300 and 336 series construction machinery, matching OEM part number 2459359. Built to withstand the extreme thermal and mechanical demands of CAT diesel engines, this radiator is a critical component for maintaining optimal engine performance in construction, mining, and industrial applications.
Core Specifications
Designed with a robust tube-and-fin structure, the radiator features a core size of 1120 × 528 × 84 mm and header dimensions of 541.7 × 114.6 mm. The inlet and outlet ports are sized at Φ50 mm for high-flow coolant circulation, while the 1/4 NPT auxiliary port enables seamless integration with coolant sensors or expansion tanks. This design balances maximum heat transfer efficiency with structural integrity under continuous heavy loads.
Key Product Features
Direct OEM Compatibility
Precision-machined to match the exact specifications of the original 2459359 radiator, this unit is a bolt-on replacement for CAT 3300 and 336 models. No modifications are required, allowing for quick installation and minimal equipment downtime during maintenance.
Superior Thermal Performance
The high-density tube-and-fin core maximizes heat dissipation, rapidly lowering engine operating temperatures even in extreme heat or prolonged heavy-duty use. This prevents overheating-related engine damage, preserving power output and fuel efficiency.
Heavy-Duty Durability
Reinforced construction resists vibration, thermal cycling, and corrosion from coolant chemicals and harsh site conditions. Premium materials prevent leaks and structural fatigue, extending the radiator’s service life in demanding environments.
Leak-Proof Sealing
Precision-engineered seals and header tanks eliminate coolant leaks, maintaining consistent system pressure and protecting critical engine components from overheating.
Applications
This radiator is purpose-built for Caterpillar 3300 and 336 series excavators and machinery, commonly used in excavation, material handling, and mining operations. By stabilizing engine temperatures, it safeguards components like the cylinder head, turbocharger, and engine block from heat-induced wear, ensuring reliable performance in high-stakes work environments.
Daily Maintenance Guidelines
Visual Inspections
Regularly check for leaks, corrosion, or bent fins. Clean debris, dust, and dirt from the fin surface to maintain airflow efficiency, especially after heavy site use.
Coolant Management
Use manufacturer-recommended coolant and maintain proper levels. Flush the cooling system at scheduled intervals to remove scale buildup that can block tubes and reduce efficiency.
Pressure Testing
Periodically pressure-test the radiator to identify hidden leaks or weak points before they cause overheating issues.
Mounting Checks
Ensure all mounting brackets are secure to prevent vibration damage to the radiator and connections, which can lead to premature failure.
The SFENG-063 tube-and-fin radiator is a cost-effective, reliable solution for CAT machinery operators, delivering OEM-level performance and durability to keep equipment running smoothly in the toughest conditions.
