Mishimoto misMMRT-CTR-17EMWRD Aluminum Expansion Tank - Red

There's no question that the 2017+ Honda Civic Type R is built to perform. From gaping grills, towering spoilers, and bright red splattered on every surface, Honda made it clear that the FK8 is designed for speed. Where we have already improved on other components for improving speed, we turned to longevity of the sporty Civic with our Aluminum Expansion Tank.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. Engine coolant reservoir designed to store and regulate excess coolant for proper system operation. Durable construction resists heat and pressure, helping prevent leaks and maintain optimal temperature.

• Internal baffle keeps coolant near overflow port during aggressive driving, preventing air entry into coolant system
• 100-percent aluminum, fully-welded construction for maximum durability during repeated temperature transitions
• Direct for the 2017+ Civic Type R

The Mishimoto Aluminum Expansion Tank is designed for the 2017 and newer Honda Civic Type R. It replaces the factory beige plastic tank with an all-aluminum design and a Rallye Red finish, providing a cleaner appearance in the engine bay while supporting reliable coolant containment during repeated heating and cooling cycles.

Key Features & Performance Benefits

• Internal baffling: Keeps coolant near the overflow port during aggressive driving to help prevent air entry into the coolant system.
• Fully welded aluminum construction: Provides durable performance during repeated temperature transitions.
• Integrated sight glass: Allows quick visibility of the coolant level.
• Direct-fit design: Designed for the 2017 and newer Honda Civic Type R.

Key Product Specifications & Technical Data

• Brand: Mishimoto
• Part number: misMMRT-CTR-17EMWRD
• Product type: Aluminum expansion tank
• Finish: Rallye Red
• Construction: 100% aluminum
• Welding: Fully welded
• Coolant visibility: Integrated sight glass
• Warranty: Mishimoto Lifetime Warranty

What's Included

The aluminum expansion tank is included. Fitment includes the 2017, 2018, 2019, 2020, 2021, 2023, 2024, and 2025 Honda Civic, plus the 2024 and 2025 Acura Integra, as specified by the supplier.

Fitments:
2017 Honda Civic Type R
2018 Honda Civic Type R
2019 Honda Civic Type R
2020 Honda Civic Type R
2021 Honda Civic Type R
2021 Honda Civic Type R Limited Edition
2023 Honda Civic Type R
2024 Acura Integra Type S
2024 Honda Civic Type R
2025 Acura Integra Type S
2025 Honda Civic Type R
2026 Acura Integra Type S
2026 Honda Civic Type R

Air Freight Prohibited: false
Not Carb Approved: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Carb Acknowledgement Required: false
Regular Stock: t
Units Per Sku: 1