Aisin OE matched engine coolant thermostat/water outlet assemblies are designed for efficient, consistent performance and manufactured using only the highest quality materials With superior OE technology and know-how, Aisin ensures that every thermostat/water outlet assembly provides perfect OE form, fit, and function For select 2015 to 2017 Acura TLX and MDX vehicles with 3.5L V6 engines Replaces OE No. 19315-5J2-A01 Gasket included