Radium Engineering Coolant Tank Kit - Toyota GR Corolla (2023+)

The Radium Engineering Coolant Tank Kit is a direct-fit, CNC-machined billet aluminum replacement for the factory plastic coolant tank on the 2023+ Toyota GR Corolla. The rugged 2-piece anodized design retains factory volume and functionality, while aluminum improves heat transfer over the OEM plastic unit. An internal swirl feature and dual chambers with cross-over passages help de-aerate the cooling system, and all mounting hardware is included.

Specifications

Shipping

• In-stock orders placed before 3 PM EST ship the same day — everything else ships within 24 hours.
• Standard, expedited, and overnight options at checkout.
• Oversized items ship by freight and take longer.
• Backordered items ship as soon as stock lands — contact us for lead times.
• International orders: prices do not include VAT, duties, or import fees. Your country charges these at import and they are the buyer’s responsibility.

Returns

• 30-day returns on new, uninstalled items in original packaging with all hardware.
• Standard returns: 8% restocking fee, buyer pays return shipping. Both waived if the item is defective or we made the error.
• Installed or used parts can’t be returned — confirm fitment before you install.
• Special orders and custom items are final sale.
• Email us for return authorization before shipping anything back.

Full details: Shipping Policy · Refund Policy