Radium Engineering Coolant Tank Kit

Fitment: 2013+ Ford Focus ST/RS

Part #: 20-0318

Overview

The Radium Engineering Coolant Tank Kit is a high-quality replacement for the OEM plastic coolant expansion tank found in 2013 and newer Ford Focus ST and RS models. Crafted from CNC-machined aluminum, this kit offers a durable and lightweight upgrade that enhances the engine bay's aesthetics while maintaining the factory functionality. Designed for enthusiasts who seek reliable performance and a sleek appearance, this coolant tank provides an additional 160mL of fluid capacity, helping to support optimal cooling system operation during spirited driving or track use. Its robust construction ensures long-lasting durability, resisting heat and corrosion better than the stock plastic tank, making it an excellent upgrade for both daily drivers and performance-oriented builds.

Key Features

This coolant tank kit combines precision engineering with practical design to deliver a reliable upgrade for your vehicle. Key features include:

• Constructed from CNC-machined aluminum for superior strength and heat resistance
• Two-chamber internal design with bolted halves for easy assembly and maintenance
• Enhanced fluid capacity to support cooling system efficiency
• Maintains OEM fitment and function, ensuring seamless installation
• Clean, anodized finish for corrosion resistance and a refined appearance
• Designed specifically for 2013+ Ford Focus ST and RS models

Construction & Design

The coolant tank is machined from high-grade aluminum, featuring a precision CNC process that ensures exact fitment and a smooth, professional finish. Its two-chamber internal design optimizes coolant flow and volume, while the bolted assembly allows for straightforward installation and serviceability. The anodized surface not only enhances durability but also adds a sleek, modern look to the engine bay.

Installation & Fitment

This kit is designed as a direct replacement for the OEM coolant expansion tank, requiring no modifications for installation. Proper fitment should be verified against your vehicle’s specifications and the part number provided.

What’s Included

The package includes the CNC-machined aluminum coolant tank, mounting hardware, and installation instructions, ensuring a complete upgrade experience.