Product details

Description

EcoBoost heat finds the weakest part in the bay, and on the Focus, that part is molded plastic holding pressurized coolant.

The Radium Engineering Coolant Tank Kit for the 2013+ Focus ST and 2016+ Focus RS replaces the factory degas tank with CNC machined aluminum built on the same architecture as Radium's expansion tanks: a low-profile two-chamber design with two crossover passages and an internal swirl feature that strips entrained air out of circulating coolant. A laser cut mounting bracket and stainless hardware put it in the factory location, and the metal construction ends the plastic tank's countdown for good.

What You'll Feel

  • A pressurized coolant vessel that shrugs off heat cycles instead of embrittling
  • Deaerated coolant, with the swirl feature separating bubbles before they reach the pump
  • A low-profile fit engineered for the Focus engine bay, not adapted to it
  • Cleaner hot-side plumbing and a serious look in a bay built for boost

Features

  • CNC machined aluminum construction, laser etched and anodized
  • Low-profile two-chamber design with two crossover passages
  • Internal swirl feature aids in deaerating the cooling system
  • Laser cut mounting bracket and stainless steel hardware included
  • Replaces the factory EcoBoost degas tank

The Details

The two-chamber layout does quiet work: crossover passages at top and bottom let coolant and air migrate between chambers, giving air a place to collect and separate while the swirl feature accelerates the process by spinning incoming coolant. On a turbocharged EcoBoost that spends its life heat-soaking the engine bay, moving the coolant reservoir from plastic to machined aluminum removes a known failure mode while the deaeration architecture improves how the system actually functions, not just how long it lasts. Installation lands in the factory location using the included bracket and hardware. Check your pressure cap's condition while the system is open, since a tired cap undermines any tank.

Kit Includes

  • 1x CNC machined aluminum coolant tank
  • 1x Laser cut mounting bracket
  • Stainless steel hardware

Applications

  • 2013-2018 Ford Focus ST (EcoBoost)
  • 2016-2018 Ford Focus RS (EcoBoost)