Radium Engineering Coolant Tank Kit Nissan GT-R 2009-2024 | 20-0557

Factory plastic coolant tanks are known to weaken and crack over time due to constant heat cycling in high-performance engines. The Radium Engineering Coolant Expansion Tank for the Nissan GT-R (R35) is a durable, high-performance upgrade designed to eliminate this common failure point.

Precision CNC machined from billet aluminum and anodized for corrosion resistance, this rugged 2-piece tank offers superior durability compared to the OEM plastic unit. Aluminum’s excellent thermal conductivity also improves heat transfer efficiency, making it well-suited for both street-driven and race-prepped GT-Rs.

This kit is a direct replacement for the factory coolant tank and installs without permanent modifications. A purpose-built aluminum mounting bracket secures to existing threaded holes, while included adapter fittings connect seamlessly to factory coolant lines. The internal functionality mirrors the OEM system while providing improved strength and reliability.

Additionally, the compact design reduces engine bay clutter, allowing more space for performance upgrades and easier access during maintenance.

Engineered for Performance

The internal design features:

• Dual chambers with cross-over passages at the top and bottom

• Internal swirl feature to help de-aerate the cooling system

• Improved long-term durability under extreme heat conditions

This tank has been proven in race and street applications worldwide, making it a trusted upgrade for GT-R owners seeking improved cooling system reliability.

Pressure Cap Compatibility

• Reuses the OEM 1.37 Bar Nissan pressure cap

• Compatible with Radium Engineering Type-A pressure caps (various relief ratings available)

• Optional Radium pressure cap is not included

Included in the Kit

• 2-Piece Billet Aluminum Coolant Expansion Tank

• Aluminum Mounting Bracket

• Aluminum Adapter Fittings

• 7/32" Overflow Hose

• Stainless Steel Installation Hardware