Mishimoto Ford Focus ST 2013+/ Focus RS 2016+ Aluminum Expansion Tank, Wrinkle Blue

Mishimoto Ford Focus ST 2013+/ Focus RS 2016+ Aluminum Expansion Tank, Wrinkle Blue

Regular Price: £196.86

Special Price £187.02

Allow 1-2 days for dispatch
From 4 monthly payments of £46.76 (based on £187.02 Purchase) *Subject to Terms and Conditions
From 4 monthly payments of £46.76 (based on £187.02 Purchase) *Subject to Terms and Conditions
Worldwide Shipping Get a quote
Mishimoto MMRT-RS-16EWBL

1x Aluminum Expansion Tank w/ Sight Tube
1x Overflow Hose
2x Rubber Sleeves
Mishimoto Lifetime Warranty

  • Direct fit for the 2016+ Ford Focus RS / 2013+ Ford Focus ST
  • Installs in under one hour
  • Sight tube allows for proper hot and cold coolant levels
  • Internal baffle keeps coolant near overflow port during aggressive driving, preventing air entry into coolant system
  • 100% aluminum, fully-welded construction for maximum durability during repeated temperature transitions
  • Overflow nipple on fill neck allows for installation of additional NHRA-mandated overflow reservoir
  • Fits with stock overflow tank cap
  • Available in Wrinkle Nitrous Blue, wrinkle red, or black powder-coated finish
  • Mishimoto Lifetime Warranty

We can supply the full Mishimoto product range, so if you can't find what you're looking for just get in touch.


Universal Part Number: 748354036947
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+ Focus ST and the new 2016+ 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.

Vehicle Fitment for Mishimoto MMRT-RS-16EWBL
2016-2017 Ford Focus RS 2.3 Litre
2013-2017 Ford Focus ST 2.0 Litre
Shipping Price

Shipping Price

We ship worldwide!
  • Yes No

Finance Calculator


No Reviews

Get the latest product releases & offers...