NO COMPROMISE IN QUALITY: While the market is being flooded with low cost (Asian) product, we feel that OEM quality is still the most important feature to bring to market. Engine Coolant Thermostat. This part generally fits Ford vehicles and includes models such as Fiesta with the trims of Base Hatchback 4-Door,S Hatchback 4-Do or,S Sedan 4-Door,SE Hatchback 4-Door,SE Sedan 4-Door,SEL Sedan 4-Door,SES Hatchback 4-Door,ST Hatchback 4-Door,ST Line Hatchback 4-Door,Titanium Hatchback 4-Door,Titanium Sedan 4-Door.