Engineered for pressure. Built for performance.

The Ichiban Engineering IE Billet Racing Coolant Header Tank is a direct upgrade for the Toyota GR Yaris, designed to eliminate the weaknesses of the factory plastic tank while enhancing durability, reliability, and aesthetics for both street and track use.
 
Machined from premium 6061-T651 billet aluminum, this header tank is built to withstand significantly higher pressures and temperatures than the OEM unit — preventing the cracking, leaks, and coolant spray commonly experienced during aggressive driving or extended track sessions.
 
A clear view window is integrated into the design, allowing quick and easy coolant level checks without removing the cap. The tank is finished with a matching billet aluminum cap, ensuring consistent strength, sealing integrity, and a refined, high-end appearance.
 
Installation is straightforward and secure thanks to stainless steel mounting brackets and included stainless hardware, providing corrosion resistance and long-term durability. For those who care about details, the tank is available in multiple anodized color options, allowing you to tailor the engine bay to your build’s style.
 
Key Features
CNC-Machined 6061-T651 Billet Aluminum
Exceptional strength, heat resistance, and long-term reliability.
High-Pressure Capability
Designed to outperform OEM plastic tanks under hard driving and track conditions.
Integrated Clear View Window
Easily monitor coolant level at a glance.
Matching Billet Aluminum Cap
Provides a consistent premium finish and reliable sealing.
Stainless Steel Mounting Brackets
Rigid, corrosion-resistant, and built for long-term use.
Stainless Installation Hardware Included
Complete bolt-on solution with no additional parts required.
Anodized Finish Options
Available in multiple colors to match your engine bay aesthetic.
 
The IE Billet Racing Coolant Header Tank is the ideal upgrade for GR Yaris owners who demand reliability under pressure, clean OEM+ fitment, and motorsport-grade construction.
 
⚙️ Fits Toyota GR Yaris
📧 For color availability or special requests: sales@ichiban.engineering