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Mishimoto Coolant Expansion Tank | 17-23+ Civic Type R FK8 & FL5, 23+ Integra Type S DE5

Mishimoto Coolant Expansion Tank | 17-23+ Civic Type R FK8 & FL5, 23+ Integra Type S DE5

Regular price $288.95 USD
Regular price $383.94 USD Sale price $288.95 USD
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  • 2017 - 2021 Honda Civic Type R FK8
  • 2023+ Honda Civic Type R FL5
  • 2023+ Acura Integra Type S DE5


The Mishimoto 2017+ Honda Civic Type R Aluminum Expansion Tank removes the eyesore that is the conspicuously beige stock tank from the FK8's engine bay replacing it with a sleek all aluminum design which looks more at home under the hood with the option for a color matching Rallye Red or stealthy black micro-wrinkle finish. Where the plastic tank is great for mass production, it's destined to fail with repeated heating and cooling cycles.

Our expansion tank design will take the worry out of containing your coolant, and can stand up to the oven that is the Civic Type R's engine bay. We have incorporated internal baffling within our tank to keep your coolant level during aggressive driving. The Mishimoto Aluminum Expansion Tank also includes a sight glass for quick visibility on fluid levels, and is covered under the Mishimoto Lifetime Warranty for a worry-free install.

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Customer Reviews

Based on 1 review
Rad Ray
The Real Deal

Unlike the OEM plastic coolant tank that cracks after a short time spilling blue fluid everywhere or the two-piece Radium tank that eventually leaks between the seal, the Mishimoto one-piece aluminum tank is bullet proof, a perfect fitment, and beautiful (red or black) compliment to the Fl-5’s engine bay.