Upgrade cooling performance and engine bay reliability with Radium Engineering Coolant Tank Kits, designed as high-quality replacements for weak factory plastic reservoirs. These tanks are CNC-machined, pressure-tested, and built from durable aluminum to withstand high heat and extreme conditions. With vehicle-specific fitment, premium hardware, and clean mounting solutions, Radium coolant tanks improve cooling system consistency while adding a refined, motorsport-grade appearance.