SKU: 13703256825

Aluminium Expansion Tank Ford Focus ST 12+/RS 16+ - Black

Sale price$196.65 Regular price$218.50
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Ships within 48 hours · Estimated delivery Aug 26 - Aug 31

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Description

Aluminium Expansion Tank Ford Focus ST 12+/RS 16+ - BlackAdd 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

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 aluminium 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 2012+ Focus ST and the new 2015+ 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.

  • Direct fit for the 2016+ Ford Focus RS / 2013+ Ford Focus ST
  • 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% aluminium, 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
  • Material: 6061 Aluminium
  • Baffled: True
  • Engine Codes: 2.0L EcoBoost / 2.3L EcoBoost​
  • Note: After a few hot and cold cycles, Mishimoto recommends checking the sight tube on the side of the expansion tank to confirm proper coolant level.
  • (1) Aluminium Expansion Tank w/ Sight Tube
  • (1) Overflow Hose
  • (2) Rubber Sleeves
  • Mishimoto Lifetime Warranty
  • 2012+ Ford Focus ST
  • 2016+ Ford Focus RS
        Shipping Notes
        • Free Standard Shipping on $100+ Orders to the USA.
        • Except Preorder products are shipped in 48 hours.
        • Delivery to the USA:
        1. Standard Shipping : 3-10 business days
        • If time is of the essence, please consider selecting expedited delivery for faster service.
        Exchange/Return Notes
        • We offer a 30-day return/exchange service after receiving.
        • Final sale items are not eligible for returns or exchanges.
        • To process your return/exchange, please contact us at [email protected]
        • Please click here for more details>>> Return & Exchange Policy
        SKU: 13703256825

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        Ksenia Ntn
        Lake Worth, US
        ★★★★★ 5
        It's a perfect shoe rack for a small apartment!
        The quality is good, and the shelf looks perfect. It also fits exactly how it should in my studio apartment! A maintenance guy has put it all together and up within 45 min! I'm very happy.
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        Reviewed in the United States on September 26, 2023
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        Travon Watson
        Carnegie, US
        ★★★★★ 5
        Stacking shelves
        These work perfectly, even in rooms with high ceilings. One thing I didn’t really see mentioned or highlighted anywhere is that they can be stacked. I decided to try it anyway, and it turned out awesome. I purchased two units and placed one on top of the other, which essentially created one tall shelf. It ended up being a great way to maximize vertical space and made the setup look much more custom and intentional
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        Reviewed in the United States on March 11, 2026
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        Graciela Gonzalez
        Pawtucket, US
        ★★★★★ 5
        Do not hesitate!
        I was hesitant with some reviews saying it comes with scratches. This was packaged extremely well and it only had one or two very minimal scratches that you barely can even see. It is very sturdy and took about 40 minutes to build. It looks amazing and is not bulky but holds a lot which I love. After building this one, I immediately ordered a second one to go on the other side of my window. My son walks in and saw this bookcase and now wants one for his room, so I will be definitely ordering more.
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        Reviewed in the United States on December 4, 2023
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        Nelson
        Lake Worth, US
        ★★★★★ 5
        Good quality
        I like how looks and good quality material for the price , I’m not complaining . Good job seller , keep customer satisfaction. Thanks
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        Reviewed in the United States on February 24, 2026
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        Tammy R Hattingh
        Phoenix, US
        ★★★★★ 5
        I love this shelving unit!
        We recently moved into a smaller home and I was struggling with storage. I found this and I’m so glad I did. It looks so good and I was able to assemble pretty quick, I think like 20 mins. I still need to get my husband to attach it to the wall but it’s the prefect size for my space. The only thing I wish was better is the instructions to assemble. It’s really easy once you figure it out but the instructions are just a few pictures on a small piece of paper. I love it!!!
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        Reviewed in the United States on October 28, 2022

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