Brand New Ford Ranger 2004-2011 Engine Coolant Thermostat Housing Connection Water O - 2.3L About This Item About This Item A failed thermostat housing will likely result in a cooling system leak, or will cause the engine in your Ford to overheat. Consider replacing your engine coolant thermostat or having our staff of expert techs handle it for you. The only parts recommended by Ford Motor Company for Ford, Lincoln and Mercury vehicles. Motorcraft and Ford Parts are used throughout Ford vehicles in a variety of applications that help ensure the proper build quality, integrity and long-lasting performance of every Ford car or truck. Motorcraft and Ford Parts are manufactured from first-quality materials - chosen specifically for maximum performance and application suitability.