Mishimoto Coolant Expansion Tank Aluminum Black 2015-2020

Mishimoto Coolant Expansion Tank Aluminum Black 2015-2019 is rated 4.7 out of 5 by 18.
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  • Tig-Welded Construction
  • Internally Baffled
  • Sight Tube Monitoring
  • Direct Fit
MSRP $237.35
You save 25%

Mishimoto Black Aluminum Coolant Expansion Tank for all 2015, 2016, 2017, 2018, 2019 and 2020 Mustangs.

Create an upgrade in looks and performance for your 2015-2020 Mustang by purchasing Mishimoto's Black Aluminum Coolant Expansion Tanks. The plastic stock coolant tanks are just not up to par and are prone to failure from years of dealing with the variety of temperature changes. This aluminum tank will not only fix that issue but will also add a touch of style under the hood of your S550.

Features and Benefits:
- Direct Fit for all 2015-2020 Mustangs
- TIG-Welded, 100% Aluminum Construction
- Black Powder Coated Finish
- Internal Baffles Prevents Coolant from Splashing During Aggressive Driving
- Maximum Durability
- Prevents Air Entry Into Coolant System
- Includes Sight Tube to Monitor Coolant Levels
- Fits with Original Overflow Cap
- Overflow Nipple on Fill Neck Permits Installation of Added Overflow Reservoir
- Comes with Overflow Hose, Worm-Gear Clamps & Mounting Hardware
- Simple Installation

This coolant expansion tank from Mishimoto features an aluminum construction that has been TIG-Welded to be a direct fit for your 2015-2020 Mustang. The 100% aluminum material will provide the maximum amount of durability and longevity to handle the constant temperature transitions. This tank also has a black powder coated finish to truly stand out in your Mustang's engine bay. Mishimoto makes sure to include a sight glass to let you properly monitor your hot and cold coolant levels.

The true highlight of this coolant tank is that internal battles that will prevent your coolant from sloshing around during your aggressive driving situations. These battles will also prevent any air entry into your coolant system, as well as making sure there isn't any coolant starvation from the overflow ports to the engine. This coolant expansion tank is also designed to work with your original overflow cap and comes with an overflow nipple on the fill neck. This overflow nipple will let you add on another NHRA-mandated overflow reservoir. Mishimoto also makes sure to include a new overflow hose, three worm-gear clamps and mounting hardware to easily install your new expansion tank correctly in about an hour.

Vehicle Fitment:
- 2015-2017 V6 Mustangs
- 2015-2020 EcoBoost Mustangs
- 2015-2020 GT Mustangs
- 2015-2020 Shelby GT350 Mustangs
- 2015-2020 Shelby GT350R Mustangs

Please Note: After a few hot and cold cycles, it is recommended that you check the sight glass on the side of your new expansion tank to confirm your coolant levels are accurate.

Tech Tip: 22in-lbs is recommended for your worm-gear clamps. These clamps have an operating range of 18-27 in-lbs. so make sure you do not exceed the maximum torque rating of 27 in-lbs.

Mishimoto is one of the global leaders in the industry and offers enthusiasts of all levels high-quality upgrades ranging from radiators, direct-fit oil cooler kits, hoses and so much more. Make sure to check out the wide variety of offered Mishimoto products now available at CJ Pony Parts to help take you’re Mustang to an entirely new performance level!

California Residents: Proposition 65 Warning

Installation Videos

Vehicle Fitment

This product will fit the following Mustang years:

Rated 5 out of 5 by from Great Quality! The Mishimoto coolant tank is excellent quality. Even their packaging is great quality. It looks great under the hood. So much better than the milk jug looking tank that is stock on the 15 Mustang GT. I like the sight tube on the side of the tank to check coolant level. Installation is pretty straight forward and there are plenty of installation videos online. The only part of the installation video that I skipped was taking down the belly pan on the underside of the engine and partially draining the radiator. I was able to empty the stock tank without loosing any coolant all from the top side. Highly recommend.
Date published: 2015-10-28
Rated 5 out of 5 by from Great quality Seems every company is back ordered on this item. Cj pony were true to there word they had it in stock and shipped in 3 days as promised. I was highly impressed when I received the tank mishimoto takes great pride in their products and it shows in the way they package and delivered this tank. Fit is perfect and install was easy just remember to plug your hoses or you will drip coolant everywhere. Thanks cjpony.
Date published: 2016-02-25
Rated 5 out of 5 by from Clean looks - a necessary change from stock unit Quick install, looks great under the hood. Helps to siphon the coolant out first and plan to top off with some fresh... larger reservoir requires a bit more to be at the appropriate level when complete.
Date published: 2017-01-18
Rated 4 out of 5 by from Mishimoto Coolant Tank Install Pretty much like the video show; however, the bottom clamp was a pain to wrestle off. Also, the supplied bolts could use washers, there was just barely enough head contact with the tank mount. Also noticed the cap will not lock but is tight and does make contact with the hood insulation. After a drive around to check for leaks I noticed the shape of the cap molded in the insulation. This makes me wonder how long term effects on the cap.
Date published: 2016-05-26
Rated 5 out of 5 by from Great new tank We love the new coolant tank for our 2019 Roush S3 Mustang. Install was a breeze. Just follow the video instructions.
Date published: 2019-10-15
Rated 5 out of 5 by from Adds a nice touch under the hood. This main reason I bought this tank over others was the sight tube. It was very easy to install although I did have to trim the sight tube down just a bit because it had a slight bow (too long) when I pulled it out of the box. The only gripe I would have is that I wish the overflow port was a little offset to the passenger side. But other than that, Mishimoto put out a great product.
Date published: 2016-08-09
Rated 4 out of 5 by from Mishimoto expansion tank Delivery and price were great. Installation was fairly easy. The oem hose clamps are a little of a pain to remove. Probably would be easier if I had the right tool for them. The quality looks good . The tank looks 100% better than the original. I like the sight tube feature, which is my only concern reference durability, only time will tell.
Date published: 2015-10-19
Rated 5 out of 5 by from Looks great and easy install Hard item to find, CJPP finally received a shipment and I had it in hand in a few days. Looks SO much better than factory. Install is easy and simple (only spilled a little coolant :) don’t hesitate if you find it in stock, they sell out everywhere!
Date published: 2018-07-29
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Does it matter how you route the overflow tube the video doesnt say and do you need to ziptie it down to secure

Asked by: Scott L
It lays in the top of the radiator.
Answered by: rk cjpp
Date published: 2020-02-20

this one only states 2015 to 2018 but the aluminum states 2015-2019. Is there a difference? i have a 2019 but i want the black one will this fit?

Asked by: takZZ
There is no difference except the color. The black version will work on the 2019.
Answered by: rk cjpp
Date published: 2019-01-24

Will this fit if you have a Ford Performance oil separator installed?

Asked by: Ron2017
We haven't tested that fitment.
Answered by: CJPP Dave
Date published: 2018-03-22

I shall be in the US in Early May, do you post to Hotels? and how would it take from order to reach the hotel? I am staying around Minnapolsas, Kansas City and St Louis ? thanks

Asked by: Goldengooner
Call us and speak to a sales associate and they should be able to get you squared away.
Answered by: CJPP Dave
Date published: 2018-03-21

will it fit my 2016 GT350?

Asked by: gray shelby
Answered by: CJPP Dave
Date published: 2018-07-31

Will this tank work with the S197-14 model 5.0? I love the styling and black powder coat finish of this tank w/ the features of the overflow.

Asked by: JP15
Answered by: CJPP Dave
Date published: 2017-09-25

Does the Mishimoto coolant tank fit in right hand drive GT 2017 vehicles?

Asked by: ShadowBlack
Answered by: CJPP Dave
Date published: 2017-07-06

Where exactly should the vent hose / overflow hose be ran down to? That is not really covered anywhere. Much thanks.

Asked by: aham23
It honestly does not matter, it can be ran anywhere. i would just make sure to put it somewhere where there is no chance of it interfering with any moving parts or potentially melting from contact with any extremely hot surfaces. Another key thing would be to run it somewhere accessible because if you were to go to a track event that requires an overflow bottle, you would have to install a secondary bottle and run the vent hose to it.
Answered by: CJPP Dave
Date published: 2018-07-31
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