Radium Engineering Coolant Tank Gasket 18-0029

Radium Engineering Coolant Tank Gasket – Part #18-0029

Application: Radium Engineering Coolant Tank | Part Number: 18-0029

The Radium Engineering Coolant Tank Gasket (18-0029) is a precision-cut replacement gasket designed specifically for Radium Engineering coolant surge tanks and expansion tanks. Engineered to maintain a leak-free seal under the thermal cycling and pressure demands of high-performance cooling systems, this gasket is an essential service item for any build running a Radium coolant tank.

Manufactured to exact tolerances, this gasket ensures a perfect mating surface between the tank body and lid, preventing coolant loss and maintaining system pressure integrity. Whether you're servicing an existing Radium tank or building a fresh cooling system, this is the correct OEM-spec replacement part.

Sold individually. Recommended replacement during any coolant tank service or rebuild.

Why Radium Engineering?

• ✅ Manufactured in the USA to motorsport-grade tolerances
• ✅ CNC-machined billet aluminium components trusted by tuners and race teams worldwide
• ✅ Proven on real-world high-power builds across drag, circuit, and time attack disciplines
• ✅ Bolt-on fitment — no cutting, drilling, or fabrication required
• ✅ Compatible with E85, pump petrol, and flex fuel cooling system configurations

If you're unsure whether this will fit your vehicle, contact our team of experts via email at hello@iilumolab.com and send through a few photos of the car for us to verify fitment.

Installation

We always recommend professional fitment for guaranteed satisfaction. If you're wanting a hassle-free installation, feel free to contact our friendly team as we offer installation services in-store at our Melbourne workshop. For more details, contact us here.

Note

Upon receiving the item, please ensure that the part is indeed the correct item you have ordered. This can be achieved by checking labels on the packaging. Please also ensure a proper test fit of the item is conducted prior to paint and/or installation. Returns/Warranty claims will be voided if the item has been tampered with, or is no longer in resalable/new condition.