Aluminium Expansion Tank Ford Focus ST 12+/RS 16+ - Wrinkle Red
SKU: 29752593291

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

Sale price$202.47 Regular price$224.97
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Description

Aluminium Expansion Tank Ford Focus ST 12+/RS 16+ - Wrinkle RedAdd 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
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        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: 29752593291

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        Linda Carol Allen
        Grantham, US
        ★★★★★ 5
        Great product for rv
        This is an excellent product. The front of our camper was very faded from the sun even though we keep it under a cover. After four coats, it looks like a different RV. We are going to do the entire camper. The difference is amazing. You will be so happy with the results. We would give it a 10 if possible.
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        Reviewed in the United States on October 19, 2025
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        Royal foil
        Lexington, US
        ★★★★★ 5
        Amazing fiberglass restoration.
        So easy to use and fabulous results. A few years back I had tried Maguires products to restore the shine on a 5th wheel. That was so labor intensive and the results were struggled to achieve faded quickly. I hesitated to Poli Glow due to the cost and our prior attempts lackluster results. I was able to get the restoration kit at a discount on Black Friday through the stores website and tackled the camper with the temps between 60-90 as instructed. I bought 2 of those kits just to find out that due to the climate and UV exposure the number of coats I would need for the Poli Glow was going to exceed the amount I had on hand through the 2 restoration kits. So I had to scramble to buy another bottle of Poli Glow. Applying this product is just time consuming and not difficult. Make sure to properly prepare the surface before using poliglow. The whole system turn a badly oxidized camper into a shiny finish. I am truly shocked. Hopeful the results will last a while. 5th wheel camper 40 foot long. I have used 3 poliglow bottles (12 coats), 1 bottle poli ox, 1.5 bottles of Poli wash (of course, not in that order). I potentially need 1 more bottle of Poli Glow to finish nose cone/basement area (basement area is still in good condition so may not do this area if I can get the nose cone with the remainder of the Poli glow I have.)
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        Reviewed in the United States on January 19, 2026
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        Kindle Customer
        San Leandro, US
        ★★★★★ 4
        Worth the time and effort.
        After proper surface prep and 6 applications, my badly sun damaged RV shined like new, with many compliments. However, after a few months under the cover, the fiberglass surfaces that were in contact with the occasionally wet cover in the Florida sun discolored badly, and will have to be wet sanded and the coating re-applied. Also, the polish does not hold up well where boat fenders rub against the coating, and it wears away in cockpit areas that are heavy hand traffic, like hatchways and around handrails. Overall a decent product, I will probably re-apply in a couple seasons.
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        Reviewed in the United States on September 23, 2025
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        Randy Brown
        Belleville, US
        ★★★★★ 5
        Brings old paint back to life.
        Best product for fiberglass oxidation. Tried many different wax’s and compounds. Poly Glow did what the wax could not do.
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        Reviewed in the United States on April 29, 2026
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        L. D. Wlson
        Charlottesville, US
        ★★★★★ 5
        The beautiful shine!!!!
        Wow so amazing!!!!! I have a 35 ft trailer you will need 2 bottles for two coats. Well worth the price.
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        Reviewed in the United States on May 25, 2026

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