Radium Coolant Tank | Lotus Elise / Exige 2ZZ-GE (20-0270-01 / 20-0270-02)

The Elise cooling system was packaged for a road car, not for track heat.

Radium Engineering coolant tanks for the Lotus Elise and Exige 2ZZ-GE, available in two mounting configurations. Both replace the factory plastic reservoir with a serviceable billet unit that will not go brittle and crack the way the original does with age and heat cycling.

Choose Your Mount

• OEM location (20-0270-01): fits the factory reservoir position
• Firewall mount (20-0270-02): relocates the tank to the firewall

What You'll Feel

• A coolant tank that will not crack like aged factory plastic
• A choice of factory position or a firewall relocation to free up space
• Hardware that survives an engine bay behind a hot 2ZZ

Features

• Billet aluminum construction, anodized
• Two mounting configurations for the same chassis
• Stainless steel hardware

The Details

The choice between the two is packaging, not capacity. The 20-0270-01 uses the factory reservoir location, which keeps the install straightforward. The 20-0270-02 moves the tank to the firewall, which frees the original space for other hardware and suits builds where the engine bay has been reworked.

Radiator caps in 1.1, 1.3, and 1.5 bar are stocked separately, along with the coolant tank gasket as a service item.

Kit Includes

• Billet coolant tank with mounting hardware for the selected configuration
• NOT included: radiator cap and coolant hose

Applications

• Lotus Elise and Exige with the 2ZZ-GE

Important Notes

• Choose OEM location or firewall mount; the two are not interchangeable after install