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Also fits select 1999–2002 Nissan Skyline R34 GT-T / 25GT / GT applications.
Upgrade the cooling system of your Nissan Skyline R33 with the CSF 7230B High-Performance All-Aluminum Radiator. Designed for both street and track use, this radiator features a 2-row, 42mm ultra-high-performance core with CSF's exclusive B-Tube technology for increased heat-transfer efficiency and cooling capacity.
The radiator uses 100% TIG-welded aluminum construction, CNC-machined mounting points, OEM-style inlet and outlet connections, and a true drop-in design requiring no cutting or modifications. The satin black finish gives the radiator a clean, aggressive appearance that works well in both show and performance builds.
CSF's B-Tube technology uses specially engineered radiator tubes that increase heat-transfer surface area by approximately 15% compared with conventional oval tubes. The design provides improved coolant contact and efficient heat transfer while allowing CSF to use thinner, lighter aluminum material.
The radiator also uses multi-louvered fins designed to maximize airflow through the core and improve heat rejection.
| Feature | CSF 7230B | OEM R33 |
|---|---|---|
| Core | 2-row, 42mm | 1-row, 25mm |
| Cooling Tubes | 75 | 58 |
| Cooling Fin Rows | 76 | 59 |
| Fin Height | 6.5mm | 9mm |
| Tank Material | Aluminum | Plastic |
| Construction | 100% TIG Welded | Crimp-on Gasket |
The larger 42mm two-row core provides increased coolant capacity and heat dissipation compared with the factory radiator.
The CSF 7230B is designed as a true drop-in replacement for the factory radiator. CNC-machined mounting points and OEM-style inlet and outlet connections allow the radiator to install in the factory location without cutting or major modifications. Factory or compatible aftermarket radiator hoses can be used.
Professional installation is recommended for performance vehicles, particularly when replacing an aging factory cooling system.
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