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The Mishimoto coolant expansion tank for 2014–2019 Fiesta ST replaces the OEM plastic unit with TIG-welded aluminum construction and internal baffles to prevent coolant starvation during hard cornering and acceleration. It includes a sight glass for level checks, fits the stock cap, offers an overflow nipple for an auxiliary tank, installs in under an hour, and carries the Mishimoto Lifetime Warranty.
Mishimoto 2014+ Ford Fiesta ST Aluminum Coolant Expansion Tank - Black
