CSF 7238 High Performance All-Aluminum Radiator for FORD Focus ST (MK3)

CSF 7238 High Performance All-Aluminum Radiator for FORD Focus ST (MK3)

The CSF 31mm all-aluminum core significantly outperforms the stock unit. The thicker core and increased coolant capacity substantially enhance the heat absorption and dissipation capabilities of the system. CSF's exclusive B-Tube technology increases heat dissipation by approximately 15% compared to standard oval welded tubes. Furthermore, the highly efficient multi-louvered fins ensure maximum airflow through the core for optimal cooling performance.

The all-aluminum, TIG-welded construction enhances the overall durability of the radiator. This improves reliability and longevity, ensuring that the CSF radiator will keep your Focus ST's temperatures under control for the long haul.

A key advantage of the CSF radiator over the OEM unit is its Triple Pass coolant flow design. The internal passages force the coolant to travel through the core three times (see diagram below) before exiting, maximizing heat transfer and lowering coolant outlet temperatures. This configuration provides more even heat distribution, reduces hot spots, and results in more stable cooling.

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