The Dayco 89241 Accessory Drive Belt Tensioner Assembly is a high-quality car part designed to ensure proper tension and performance of the accessory drive belt in your vehicle. Made by the reputable brand Dayco, this tensioner assembly is a crucial component for maintaining the optimal functioning of your car or truck's engine. With its durable construction and precise engineering, the Dayco 89241 is a reliable choice for replacing or upgrading your vehicle's tensioner assembly.