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
| Type | Billet aluminum coolant expansion tank kit |
| Material | CNC-machined anodized 6061 aluminum (2-piece) |
| Fitment | Direct-fit for 2023+ Toyota GR Corolla |
| Included | Coolant tank and mounting hardware |
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