The Dayco Gold Label 89490 Accessory Drive Belt Tensioner Assembly is a high-quality car part made in the United States. This tensioner assembly, designed by the reputable brand Dayco, is specifically designed for accessory drive belts. It comes with interchange part numbers like 49517, 89490, and 3957433, providing compatibility options for various car models. With its precise engineering and durable construction, this tensioner assembly ensures efficient and reliable performance of the accessory drive belt system in vehicles.