Aluminium Expansion Tank Ford Focus ST 12+/RS 16+ - Black
SKU: 13703256825

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

Sale price$196.65 Regular price$218.50
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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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        BIR GAZMER
        Houston, US
        ★★★★★ 5
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        Reviewed in the United States on June 2, 2026
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        August Wilkinson
        Grantham, US
        ★★★★★ 5
        Worth the money
        Color: Gold-tone Hardware/Leather/Dress Blues
        Was made of excellent material and put together nicely. Looked like black in the picture but was dark navy, I just didn’t read the description.
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        Reviewed in the United States on May 13, 2026
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        Amazon Customer
        San Leandro, US
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        Perfect size
        Color: Vanilla/Acorn
        Perfect size . This will hold everything you need. It’s not too small not too big
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        Reviewed in the United States on May 4, 2026
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        Janet Becraft
        Los Angeles, US
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        Color: Vanilla/Acorn
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        Holy Cow
        New York, US
        ★★★★★ 5
        Polished Everyday Crossbody, Though Priced Like a Designer-Branded Bag
        Color: Vanilla/Acorn
        This crossbody bag has a clean, classic look that works well for everyday use, errands, travel, or casual outfits where you want something more polished than a basic purse. The north-south shape gives it a slim profile, so it does not feel overly bulky, but it still has enough room for daily essentials like a phone, wallet, keys, small cosmetics, cards, and other small items. The zipper closure is a practical feature because it keeps everything more secure than an open-top bag, especially when walking around, shopping, or traveling. The front and back zippered pockets are also useful for items you want quick access to, like a phone, receipt, lip balm, or transit card. I like that the layout keeps the bag organized without making it feel complicated. The material is mostly PVC with some polyester and polyurethane, so it has more of a coated designer-bag feel rather than soft genuine leather. That makes it easier to wipe clean and more resistant to everyday marks, but buyers should know they are paying more for the brand/style than for leather construction. The bag feels structured and presentable, but it may not have the same long-term aging or softness as a real leather crossbody. For comfort, the crossbody style is convenient because it keeps your hands free and distributes weight better than carrying a small handbag by hand. It is best for people who want a stylish everyday bag, not someone looking for a large tote or something that can carry bulky items. For pricing, similar branded crossbody bags usually range from about $80–$200, depending on the brand, size, material, and whether it is leather or coated canvas/PVC. At around $180, this is on the premium side for a PVC-blend crossbody, but it is fairly typical for the Michael Kors price range. Overall, it feels worth considering if you like the style and brand name, but value-focused buyers may want to compare sale prices or color options before paying full price.
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        Reviewed in the United States on May 14, 2026

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