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Mishimoto Mishimoto 2014+ Ford Fiesta ST EcoBoost Racing Thermostat
Mishimoto Mishimoto 2014+ Ford Fiesta ST EcoBoost Racing Thermostat
Mishimoto Mishimoto 2014+ Ford Fiesta ST EcoBoost Racing Thermostat
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Mishimoto 2014+ Ford Fiesta ST EcoBoost Racing Thermostat

Mishimoto
MISMMTS-FIST-14
748354026337
Thermostats
20+ Units In Stock - Ships Next Business Day
$ 76.00 $ 68.95
$ 68.95

SKU: MMTS-FIST-14 | UPC: 748354026337

Mishimoto 2014-2019 Ford Fiesta ST EcoBoost Racing Thermostat

The Mishimoto racing thermostat delivers essential cooling for 2014-2019 Ford Fiesta ST 1.6L EcoBoost engines. It opens at 160°F compared to the OEM 207°F for earlier coolant flow and reduced operating temperatures during spirited driving or track sessions. Pair it with the Mishimoto Fiesta ST aluminum radiator to maintain consistent engine temps and support reliable power output.

Key Features

  • Lower Opening Temperature: Activates at 160°F (71°C) to circulate coolant sooner and drop engine temps by up to 20°F versus stock.
  • Direct OEM Replacement: Bolt-on fit for 2014-2019 Ford Fiesta ST with no modifications required for quick installation.
  • Included Gasket: High-quality O-ring gasket ensures leak-free sealing and long-term reliability.
  • Stainless Steel Construction: Durable materials resist corrosion and withstand high-heat racing conditions.
  • Mishimoto Lifetime Warranty: Backed by proven engineering for peace of mind in every lap or mile.

Product Notes

  • Drain engine coolant completely before removal of stock thermostat.
  • Recommended for use with upgraded radiator to achieve full cooling potential.
  • Avoid mixing with stock thermostat during installation.

Installation Notes

  • Professional installation recommended.
  • Direct replacement requires basic hand tools and takes 30-60 minutes.
  • Compatible with OEM housing. torque to factory specs and refill coolant after install.

This Part Fits

Year Make Model Submodel
2014-2019 Ford Fiesta ST

Why Choose Mishimoto?

  • Trusted by racers for direct-fit cooling upgrades on Ford EcoBoost platforms.
  • Engineered and dyno-tested for real-world temperature reductions.
  • Precision-machined components ensure seamless integration and durability.

Frequently Asked Questions

  • Q: Will this thermostat fit my 2019 Ford Fiesta ST?
    A: Yes it fits all 2014-2019 Ford Fiesta ST models with the 1.6L EcoBoost engine as a direct OEM replacement.
  • Q: What material is the thermostat made from?
    A: Features stainless steel valve and high-temperature polymer housing for corrosion resistance and heat tolerance.
  • Q: What warranty comes with this part?
    A: Covered under the Mishimoto Lifetime Warranty against defects in materials or workmanship.

Shipping & Handling

  • Method: UPS Ground
  • Availability: In stock - ships same or next business day
  • Packaging: Secure Mishimoto box 5.5 x 4 x 2 inches
  • Weight: 0.2 lbs

Request For Information

Have questions about Mishimoto 2014+ Ford Fiesta ST EcoBoost Racing Thermostat? Fill out the form below and we'll get back to you by the next business day.
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