Mishimoto
Mishimoto 2013+ Ford Focus ST/2016+ Focus RS Aluminum Expansion Tank - Black
SKU: M00C MMRT-RS-16EBK
Description
Part #: MMRT-RS-16EBK
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
Aluminum Expansion Tank fits Ford Focus ST 2013-2018/ Focus RS 2016-2018
Fitment
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Specifications
| Brand | Mishimoto |
| Part Number | M00C MMRT-RS-16EBK |
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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