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Mishimoto MMRT-RS-16EBK Expansion Tank Compatible With Ford Focus ST 2013+/Focus RS 2016-2018 Black

  • Based on 35 reviews
Condition: New
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$255.95 Why this price?

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Availability: Only 4 left in stock, order soon!
Fulfilled by HGA Performance

Arrives Wednesday, Feb 5
Order within 16 hours and 27 minutes
Available payment plans shown during checkout

Color: Black


Features

  • Direct fit for the 2016-2018 Ford Focus RS / 2013+ Ford Focus ST and installs in under one hour
  • 100% aluminum, fully-welded construction for maximum durability during repeated temperature transitions and includes internal baffle keeps coolant near overflow port during aggressive driving, preventing air entry into coolant system
  • Overflow nipple on fill neck allows for installation of additional NHRA-mandated overflow reservoir and sight tube allows for proper hot and cold coolant levels
  • Available in Wrinkle Nitrous Blue, wrinkle red, or black powder-coated finish and fits with stock overflow tank cap
  • Mishimoto Lifetime Warranty

Description

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.

Brand: Mishimoto


Material: Aluminum


Fit Type: Vehicle Specific


Item dimensions L x W x H: 15 x 9.5 x 9.5 inches


Exterior Finish: Machined


Vehicle Service Type: ‎Car


Item Weight: ‎1.85 Kilograms


Product Grade: ‎Replacement Part


Global Trade Identification Number: ‎30


UPC: ‎748354036930


Manufacturer: ‎Mishimoto


Model: ‎MMRT-RS-16EBK


Item Weight: ‎4.08 pounds


Product Dimensions: ‎15 x 9.5 x 9.5 inches


Item model number: ‎MMRT-RS-16EBK


Is Discontinued By Manufacturer: ‎No


Manufacturer Part Number: ‎MMRT-RS-16EBK


OEM Part Number: ‎CV6Z-8A080-C


Date First Available: May 25, 2017


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Wednesday, Feb 5

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Great product.
Color: Black
This expansion tank is a great replacement for the OEM. The OEM, didn't last long and developed hairline fractures. Mishimoto's expansion tank looks good under the hood and it only took 15 minutes to install myself. Great product, I would recommend it to everyone I know.
Reviewed in the United States on February 18, 2023 by Adrian E. Reyno

  • 2016 Focus RS Nitrous Blue
Color: Wrinkle Nitrous Blue
Purchased about a month ago.. has been holding up very strong, easy install, and looks great matches up with the nitrous blue very well. Honestly surprised it was not this way from the factory this is far superior to the cheap plastic. Be ready with some extra coolant 1st because you may spill, 2nd because this tank is slightly larger and you may need it to get the level correct and please do not mix coolants check with your dealer if you are unsure which type to use. 2016 Focus RS Nitrous Blue ... show more
Reviewed in the United States on February 13, 2021 by Travis Johnson

  • Solid, stylish and functional. Also expensive.
Color: Wrinkle Nitrous Blue
Mishimoto makes awesome products of the highest quality. My Focus RS is probably half Mishimoto. My only complaint is the price. You can find other custom welded products much cheaper. So why pay more? You get what you pay for and if you want the best, it's going to cost you.
Reviewed in the United States on May 5, 2024 by Brandon

  • Another quality Mishimoto product!
Color: Wrinkle Red
Beautifully made, quality at it’s finest and beautiful paint. Sight glass is excellent for viewing coolant level. Installation was simple! 10 minutes.
Reviewed in the United States on December 24, 2019 by Mondo Mondo

  • Easy and worth it
Color: Black
The OEM coolant tank is a well known eyesore on these cars, turn a nasty yellow over time, and start cracking too soon. The aluminum tank drastically changes the look under your hood and will last a long time. Super easy to install and took about 15 minutes. Remember to be safe when dealing with coolant and use YouTube if you have to. ... show more
Reviewed in the United States on September 24, 2023 by Rene Valdivia Rene Valdivia

  • Great mod to improve the engine bay aesthetic
Color: Wrinkle Red
Of all the mods I have put on the Focus ST this was probably the easiest. Only took 15-20 mins and looks much better than the plastic stock coolant reservoir.
Reviewed in the United States on May 28, 2022 by Drew Adams

  • Buy looks good
Color: Wrinkle Nitrous Blue
Worth the money nice quality but didn’t have the car no more
Reviewed in the United States on March 27, 2021 by GoDSaLo

  • Go Mishi!
Color: Wrinkle Nitrous Blue
Solid construction. Easy install. Looks great under the hood!
Reviewed in the United States on May 23, 2019 by Justin Justin

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