Mishimoto Performance Thermostat, 71C/160F – Ford Fiesta – 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 & Benefits

• Direct fit for the 2014-2019 Ford Fiesta ST; Lower activation temperature allows coolant to flow through the engine earlier, maintaining lower temperatures; Mishimoto thermostat activates at 160F vs. stock 207F; Mishimoto Lifetime Warranty;

Vehicle Compatibility

Please check the exact model, variant and production year below before ordering.

• 2014–2016 Ford Fiesta ST

Technical Specifications

• Applications: 2014-2019 Ford Fiesta ST
• Engine Codes: 1.6L EcoBoost
• Chassis Codes: B3
• Includes: (1) Mishimoto Thermostat--(1) Spring Plate--(1) Spring--(2) Rubber O-Rings--Mishimoto Lifetime Warranty
• Note: The installation of this thermostat requires the use of the Motorcraft RH-223 housing. The stock thermostat must be removed and the Mishimoto thermostat installed in its place.
• Mishimoto Activation Temperature (F): 160
• OEM Activation Temperature (F): 207

Mishimoto Part Number: MMTS-FIST-14

Need help checking fitment? Contact Retro Fast Fords before ordering and we can help verify compatibility.