Radium Engineering Coolant Tank Kit

2023–2026 Toyota GR Corolla

20-0767

Overview:

The Radium Engineering Coolant Tank Kit is a high-quality replacement for the factory plastic coolant tank on the 2023 and newer Toyota GR Corolla. Designed to withstand the rigors of track use and intense heat cycling, this billet aluminum tank offers superior durability and longevity compared to the OEM plastic unit. Whether you are a daily driver or a performance enthusiast pushing your GR Corolla on the track, this coolant tank ensures reliable coolant containment and improved thermal management for your vehicle’s cooling system.

By upgrading to this CNC machined and anodized aluminum tank, you’ll benefit from enhanced heat transfer and a robust construction that is suitable even for racing applications. The compact design maintains the same coolant volume as the factory tank while occupying less space under the hood.

Key Features:

This coolant tank kit combines thoughtful engineering with durable materials to provide a reliable and efficient cooling solution for your GR Corolla.

• Constructed from CNC machined billet aluminum for exceptional strength and longevity
• Anodized finish resists corrosion and enhances durability
• Maintains the same coolant volume as the factory tank in a reduced overall size for improved packaging
• Two-chamber design with cross-over passages at the top and bottom to ensure proper coolant flow and pressure equalization
• Superior thermal conductivity of aluminum improves heat dissipation compared to plastic tanks
• Robust metal construction suitable for demanding track and racing environments
• Direct bolt-on replacement for the factory plastic coolant tank with no modifications required

Construction & Design:

The Radium Engineering coolant tank is precision CNC machined from billet aluminum, providing a strong and lightweight alternative to the fragile plastic OEM tank. The anodized surface finish protects against corrosion and wear, ensuring long-term reliability even under extreme conditions. The tank’s two-piece design features two internal chambers connected by cross-over passages at both the top and bottom, promoting consistent coolant flow and preventing air pockets.

Aluminum’s superior thermal conductivity helps dissipate heat more effectively than plastic, aiding in overall cooling system performance. The compact footprint of the tank allows for better space utilization in the engine bay without sacrificing coolant capacity.

Installation & Fitment:

This coolant tank kit is designed as a direct replacement for the factory plastic tank on the 2023 and newer Toyota GR Corolla. Installation is straightforward and uses the existing mounting points and hoses, requiring no cutting, drilling, or special tuning. The included billet adapter fittings and aluminum mounting bracket ensure a secure and proper fitment.

• Direct bolt-on replacement for 2023–2026 Toyota GR Corolla
• No modifications or special tools required
• Includes all necessary hardware and fittings for installation

What's Included:

• 2-piece billet aluminum coolant tank
• Aluminum mounting bracket
• Billet adapter fittings
• 7/32" overflow hose
• Stainless steel hardware
• Installation instructions

Ideal For:

• Owners of 2023+ Toyota GR Corolla seeking a durable, long-lasting coolant tank upgrade
• Track enthusiasts and racers requiring a coolant tank that withstands intense heat cycling
• Drivers looking to improve cooling system reliability and thermal management
• Anyone wanting a direct-fit, high-quality replacement for the factory plastic coolant tank