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Mishimoto
Mishimoto 2014+ Ford Fiesta ST EcoBoost Racing Thermostat
SKU: M00C MMTS-FIST-14
Moderate — 2–4 hours
Description
Part #: MMTS-FIST-14
Keep your Fiesta running cool with the Mishimoto low-temperature Fiesta ST thermostat. Optimal engine temperatures are imperative to achieving peak performance. This Fiesta ST thermostat activates at 160 F vs. the stock 207 F, allowing the coolant to flow through the engine earlier. When you're out hot lapping at the track, a lower temperature thermostat will be beneficial in keeping engine temps down. When paired with the Mishimoto Fiesta ST Aluminum Radiator, your Fiesta will maximize cooling efficiency. This Fiesta thermostat, like all our Fiesta ST parts, includes the unparalleled Mishimoto Lifetime Warranty.
Features:
- Direct fit for the 2014-2019 Ford Fiesta ST
- Lower activation temperature allows coolant to flow through the engine earlier
- Mishimoto thermostat activates at 160 F vs. stock 207 F
- Mishimoto Lifetime Warranty
Engine coolant thermostat designed to regulate coolant flow and maintain optimal operating temperature. Ensures efficient warm-up, prevents overheating, and supports reliable performance with a precise fit.
MIA's Description
The thermostat includes a spring plate, spring, and two rubber O-rings. Mishimoto offers a lifetime warranty on this product.
Fitment
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Available on iOS & Android
Specifications
| Brand | Mishimoto |
| Part Number | M00C MMTS-FIST-14 |
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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