Description
The Radium Engineering Coolant Tank for 2013+ Ford Focus ST/2016+ Focus RS Kit is intended for performance builds that demand a more deliberate approach than simply adapting the factory hardware. It gives the installer a Radium-specific foundation for the listed application.
Why This Upgrade Matters
An expansion tank provides a controlled high point for coolant expansion and air separation. In hard-use vehicles, a rigid, serviceable tank and well-planned hose routing can improve durability and make the cooling system easier to bleed and inspect.
Product-Specific Details
two chamber design with two cross over passages and internal swirl feature
Fitment & Application
Application: 2013+ Ford Focus ST/2016+ Focus RS Kit
Fitment style: Application-Specific
Technical Notes
Expansion-tank placement and hose routing determine whether the tank can function as an effective high point for bleeding. Use the pressure-cap type and relief pressure specified for the application rather than selecting a higher-pressure cap simply as an upgrade.
Radium Part Number
RAD20-0318
Enthusiast Notes
For cars that live through repeated heat cycles, track sessions and frequent maintenance, the upgrade is as much about durability and serviceability as appearance.
Before Ordering
Confirm vehicle fitment or, for universal tanks, available mounting space, hose routing and pressure-cap requirements. Pressure caps and application-specific hoses may be separate.