The 2015-2019 Subaru Legacy Outback Radiator Coolant Overflow Reservoir Tank OEM is a genuine Subaru part made of plastic, specifically designed for the models mentioned. It features a factory fit and is suitable for the vehicle with the specified VIN. This coolant overflow reservoir tank is a direct replacement part for the described Subaru models, ensuring proper functionality and performance. Made in the United States, this OEM reservoir tank is a reliable and high-quality component for maintaining engine cooling systems.