Dorman 419013 Automatic Belt Tensioner

Dorman's Automatic Belt Tensioner Assembly is designed to provide proper tension to a vehicle's serpentine belt. It incorporates a damping design, torsion spring, and sealing system to ensure the proper functioning of many integral engine components. Rigorously tested for a sustained, secure performance by a team of product and quality engineers. The Automatic Belt Tensioner Assembly is recommended for replacement when replacing the serpentine belt.