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Real experience
We test before we recommend.
PRODUCT DESCRIPTION
These kits are designed to replace the plastic coolant degas bottle located at the front of the engine bay. They are compatible with the Ford Mustang (GT, EcoBoost, V6).
The Radium Engineering Coolant Expansion Tank is CNC machined from aluminum and consists of two bolted halves.
Its low-profile design provides additional engine bay clearance for forced induction systems or other modifications. The internal design features two chambers that are NOT isolated from each other. There are connecting passages at the top and bottom. The Radium Engineering Coolant Expansion Tank also incorporates an internal swirl system which aids in deaerating the system.
Kits include all necessary parts for installation. No permanent modifications to the vehicle are required.
Includes:
- Machined Aluminum Coolant Tank
- Anodized Aluminum Mounting Bracket
- Stainless Steel Hardware
- Adapters
- Replacement Heater Hose
- 7/32" Overflow Hose
*PRESSURE CAP SOLD SEPARATELY*
Instructions PDF










WHY THETUNERLAB
We have spent years building cars, racing, and testing the exact same parts that we sell.
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We test before we recommend.
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We help you choose the right part.
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Only trusted manufacturers.
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Before and after the purchase.
+10 years
of passion for drifting
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available products
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satisfied customers
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passion for motoring
Each product indicates compatible models in the product description. If you have any questions, you can contact us and we will help you choose your best option.
-If the product is in stock, the usual delivery time is 2 to 5 working days.
-If the product is out of stock, the delivery time is 7 to 15 working days.
All our products come with the manufacturer's official warranty and comply with current regulations.
Yes. We ship orders to Spain and most European countries using specialized transport agencies.
You can contact our team via WhatsApp, email, or our website's contact form.
Shipping costs depend on the type of product, its weight, dimensions, and the destination country. In most cases, the amount is calculated automatically during the checkout process before the order is finalized.
For some products, especially large items or those with special characteristics, shipping costs may require a manual review. If the amount shown does not match the actual shipping cost, we will contact you before processing the order to inform you of the final cost and request your confirmation before proceeding. We will never charge any additional fees without your authorization.