Mishimoto Aluminum Expansion Tank for 2013-2018 Ford Focus ST and RS – Wrinkle Blue

Add some reliability and engine bay styling to your Focus RS/ST with the Mishimoto RS/ST expansion tank. This tank features internal baffles to prevent coolant starvation from overflow ports on the engine. Also, during high speed cornering, braking, and acceleration, the internal baffles reduce coolant sloshing. The engineers at Mishimoto have included a sight tube to allow for proper observation of hot and cold coolant levels, making engine maintenance much easier.----Eventually, you'll have to consider the health of your plastic expansion tank. Plastic is prone to failure after years of constant temperature variations. The Mishimoto tank is constructed from durable, TIG-welded aluminum for optimal durability and longevity. It reuses the stock expansion tank cap and includes an overflow nipple on the fill neck for adding an additional coolant tank so your Focus RS stays NHRA legal. All areas of concern are covered with this upgrade.----It's worth noting the Focus's stock tank is an engine bay eye sore, whereas the Mishimoto tank comes in three different variants to help with aesthetic customization: black, wrinkle red, or Wrinkle Nitrous Blue. Each of these options works with both the 2013-2018 Focus ST and the new 2016-2018 Focus RS. For convenience, you can install your new coolant tank upgrade in under one hour as it was engineered with perfect fitment in mind. Like all our Focus RS parts, this expansion tank also includes the Mishimoto Lifetime Warranty. Engine coolant reservoir designed to store and regulate excess coolant for proper system operation. Durable construction resists heat and pressure, helping prevent leaks and maintain optimal temperature.

• Internal baffle keeps coolant near overflow port during aggressive driving, preventing air entry into coolant system
• Sight tube allows for proper hot and cold coolant levels
• Installs in under one hour

Enhance the reliability and appearance of your Ford Focus ST or RS with the Mishimoto MMRT-RS-16EWBL aluminum expansion tank. Constructed from TIG-welded aluminum, this durable coolant reservoir offers superior longevity compared to stock plastic tanks, which are prone to failure over time due to constant temperature fluctuations. Its robust build helps prevent leaks and maintains optimal engine temperature, ensuring your vehicle operates smoothly under demanding driving conditions. The tank reuses the stock cap and features an overflow nipple on the fill neck, allowing for additional coolant capacity to keep your Focus NHRA-legal and ready for high-performance use.
Featuring internal baffles, this expansion tank minimizes coolant sloshing during aggressive cornering, braking, and acceleration, while also preventing coolant starvation at overflow ports. A sight tube allows for easy observation of hot and cold coolant levels, simplifying routine maintenance and ensuring your cooling system remains properly filled. Designed for a perfect fit, installation can typically be completed in under an hour, making it an accessible upgrade for both enthusiasts and professionals. The Mishimoto aluminum tank is available in three aesthetic options—wrinkle black, wrinkle red, or wrinkle nitrous blue—so you can customize your engine bay to match your style. This upgrade not only improves engine bay appearance but also enhances overall cooling system performance, backed by Mishimoto's lifetime warranty.
Compatibility spans various Ford Focus models from 2013 through 2018, including the Focus ST and Focus RS, ensuring a seamless fit and reliable upgrade for your vehicle's cooling system.

Features:

• Constructed from TIG-welded aluminum for durability and longevity

• Internal baffle system prevents coolant starvation during high-speed maneuvers

• Sight tube for easy monitoring of hot and cold coolant levels

• Reuses stock expansion tank cap for ease of installation

• Includes overflow nipple for additional coolant capacity

• Engineered for a perfect fit in under one hour

• Available in three aesthetic variants: black, wrinkle red, or wrinkle nitrous blue

• Backed by Mishimoto's lifetime warranty

Fitment:
2013 Ford Escape S
2013 Ford Escape SE
2013 Ford Escape SEL
2013 Ford Escape Titanium
2013 Ford Focus Electric
2013 Ford Focus S
2013 Ford Focus SE
2013 Ford Focus ST
2013 Ford Focus Titanium
2014 Ford Escape S
2014 Ford Escape SE
2014 Ford Escape Titanium
2014 Ford Focus Electric
2014 Ford Focus S
2014 Ford Focus SE
2014 Ford Focus ST
2014 Ford Focus Titanium
2014 Ford Transit Connect Titanium
2014 Ford Transit Connect XL
2014 Ford Transit Connect XLT
2015 Ford Escape S
2015 Ford Escape SE
2015 Ford Escape Titanium
2015 Ford Focus Electric
2015 Ford Focus S
2015 Ford Focus SE
2015 Ford Focus ST
2015 Ford Focus Titanium
2015 Ford Transit Connect Titanium
2015 Ford Transit Connect XL
2015 Ford Transit Connect XLT
2016 Ford Escape S
2016 Ford Escape SE
2016 Ford Escape Titanium
2016 Ford Focus Electric
2016 Ford Focus RS
2016 Ford Focus S
2016 Ford Focus SE
2016 Ford Focus ST
2016 Ford Focus Titanium
2016 Ford Transit Connect Titanium
2016 Ford Transit Connect XL
2016 Ford Transit Connect XLT
2017 Ford Focus Electric
2017 Ford Focus RS
2017 Ford Focus S
2017 Ford Focus SE
2017 Ford Focus SEL
2017 Ford Focus ST
2017 Ford Focus Titanium
2017 Ford Transit Connect Titanium
2017 Ford Transit Connect XL
2017 Ford Transit Connect XLT
2018 Ford Focus Electric
2018 Ford Focus RS
2018 Ford Focus S
2018 Ford Focus SE
2018 Ford Focus SEL
2018 Ford Focus ST
2018 Ford Focus Titanium
2018 Ford Transit Connect Titanium
2018 Ford Transit Connect XL
2018 Ford Transit Connect XLT
2019 Ford Transit Connect Titanium
2019 Ford Transit Connect XL
2019 Ford Transit Connect XLT
2020 Ford Transit Connect Titanium
2020 Ford Transit Connect XL
2020 Ford Transit Connect XLT
2021 Ford Transit Connect Titanium
2021 Ford Transit Connect XL
2021 Ford Transit Connect XLT

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1