Sale

Heating and Cooling Overflow Tanks and Catch Cans

Mishimoto

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

$313.00 $284.95 Save $28.05

SKU: M00C MMRT-RS-16EWBL

In Stock
In Stock
Ships by Aug 10
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Description

Part #: MMRT-RS-16EWBL

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.

Features:

  • Direct fit for the 2016--2018 Ford Focus RS / 2013-2018 Ford Focus ST
  • Sight tube allows for proper hot and cold coolant levels
  • 100-percent aluminum, fully-welded construction for maximum durability during repeated temperature cycles
  • Available in Wrinkle Nitrous Blue, wrinkle red, or black powder-coated finish
  • 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.

MIA's Description

This Mishimoto aluminum expansion tank is a direct fit for the 2016-2018 Ford Focus RS and 2013-2018 Ford Focus ST. It features internal baffles to prevent coolant starvation and reduce coolant sloshing during aggressive driving. A sight tube allows for easy observation of hot and cold coolant levels. Constructed from durable, TIG-welded 100% aluminum for maximum durability, it reuses the stock expansion tank cap and includes an overflow nipple for adding an additional NHRA-mandated coolant tank. It comes in wrinkle nitrous blue, wrinkle red, or black powder-coated finishes to enhance engine bay aesthetics. The installation can be completed in under one hour and is backed by Mishimoto's Lifetime Warranty.

Fitment

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Specifications

BrandMishimoto
Part NumberM00C MMRT-RS-16EWBL

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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