Parts for your 2015 Subaru Legacy-Thermostat housing

2015 Subaru Legacy (Liberty) Thermostat Housing — purpose, care and when to replace

Yes, this model uses a thermostat housing. Technical references including the Subaru Service Manual for the 2015 Legacy/Outback (Cooling System section) and Subaru’s parts catalogue list a thermostat and dedicated cover/housing (often called the water outlet) on both the 2.5i FB25 and 3.6R EZ36 engines. It sits at the lower radiator hose connection on the front of the engine (integrated at the water pump on FB25