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Black anodized TIG-welded aluminum coolant expansion tank for 2015-2023 Ford Mustang with integrated sight glass.
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Mishimoto Aluminum Coolant Expansion Tank for 2015-2023 Ford Mustang - Black (3.7L / 5.0L) MMRT-MUS-15EBK

$232.95 $256.00
-9%
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Mishimoto Aluminum Coolant Expansion Tank for 2015-2023 Ford Mustang - Black (3.7L / 5.0L) MMRT-MUS-15EBK
$232.95 $256.00
$232.95 $256.00

Fits 2015-2023 Ford Mustang (EcoBoost, V6, GT, Bullitt, Mach 1, and Shelby GT350/GT500).

Replace the failure-prone factory plastic reservoir with the Mishimoto Aluminum Coolant Expansion Tank. Engineered as a direct-fit upgrade, this tank is constructed from durable, TIG-welded aluminum to withstand the constant temperature cycles that cause OEM plastic units to crack and leak. The internal baffled design ensures coolant stays near the overflow ports during high-G cornering, braking, and acceleration, preventing air from entering the cooling system.

This tank features a built-in sight glass for quick, accurate hot and cold level checks and includes an overflow nipple on the fill neck to facilitate additional tank plumbing for NHRA legality. It is designed for a simple installation in under one hour using the factory mounting points and is compatible with the stock expansion tank cap.

  • Direct fit for 2015-2023 Ford Mustang (all trims)
  • Internal baffles prevent coolant sloshing and starvation
  • Durable TIG-welded aluminum construction in a black anodized finish
  • Integrated sight glass for easy fluid level monitoring
  • Compatible with OEM expansion tank cap
  • Includes overflow nipple for NHRA-legal requirements
  • Manufacturer Part Number: MMRT-MUS-15EBK
  • Mishimoto Lifetime Warranty
📘 Guides & Manuals
🔧 Fitment & Compatibility
Year Make Model Submodel
2019-2020 Ford Mustang Bullitt
2015-2023 Ford Mustang EcoBoost
2015-2023 Ford Mustang EcoBoost Premium
2015-2023 Ford Mustang GT
2015 Ford Mustang GT 50 Years Limited Edition
2015-2023 Ford Mustang GT Premium
2021-2023 Ford Mustang Mach 1
2015-2020 Ford Mustang Shelby GT350
2015-2020 Ford Mustang Shelby GT350R
2020-2022 Ford Mustang Shelby GT500
2015-2017 Ford Mustang V6

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