
When you’re chasing turbocharged thrills, your cooling system can’t afford to fall behind. The CSF High-Performance All-Aluminum Radiator for the MK6 Ford Fiesta ST is engineered to keep things chill—even when your engine is anything but. Whether you’re carving canyons, track-day lapping, or pushing big boost on the street, this triple-pass, race-ready radiator is your answer to consistent cooling and bulletproof reliability.
Fitment Information
- Ford Fiesta ST (2014, 2015, 2016, 2017, 2018, 2019)
Specs & Features
- 2-Row 42mm Ultra-High-Performance Core – Delivers significantly increased fluid capacity and cooling efficiency
- Triple Pass Flow Design – Forces coolant through the core three times for superior heat dissipation
- Exclusive B-Tube Technology – Increases heat transfer by ~15% over conventional tubes
- 6.5mm Multi-Louvered Fins – Maximizes airflow and surface contact for faster cooling
- 100% TIG-Welded All-Aluminum Construction – Built tough to handle high pressure and extreme heat
- CNC Machined Mounting Pins & Brackets – For precise OEM-style fitment
- True Plug-and-Play Installation – No cutting, no mods—just bolt in and go
- Individually Leak & Pressure Tested – For peace of mind right out of the box
- OEM Style Inlet/Outlet – Seamless connection to factory hoses
- Backed by a 2-Year Limited Warranty
Product Details
The Ford Fiesta ST is beloved for its punchy 1.6L EcoBoost engine, nimble handling, and tuner-friendly DNA. But as any enthusiast knows, its factory cooling setup isn’t made for the heat that comes with hard driving or high-horsepower builds. That’s where the CSF Fiesta ST Radiator steps in.
Whether you’re running a bolt-on turbo kit, aggressive ECU tune, or just live in a hotter climate, upgrading your radiator is a must. The factory plastic tank and single-row core just can’t keep up with the demands of performance driving. CSF’s radiator, however, is built from 100% TIG-welded aluminum, featuring a 2-row, 42mm core and triple-pass flow configuration to push your cooling capacity to the next level.
The real game-changer? CSF’s proprietary B-Tube Technology, which increases efficiency by approximately 15% over standard tube designs. Combined with ultra-efficient multi-louvered fins, this setup ensures quicker heat rejection and more consistent temperatures—essential for preventing detonation and maintaining performance under boost.


More in this category
CSF Performance Radiators
Ford Fiesta Parts
Ford Fiesta ST Parts
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