Your Mazda5's Belt tensioner is a pulley that is used to keep tension on the engine belts, so that it allows for the various engine accessories attached to it to function properly. A malfunctioning belt tensioner can affect the performance and functionality of the vehicle. Symptoms of a failing belt tensioner includes: grinding/squeaking noise form the belts or tensioners, unusual belt wear and failing of the accessories that are connected to the belt.
Replace your Mazda5's Belt Tensioner for proper functioning of your belt and the belt-driven accessories
High quality OEM Mazda Belt Tensioner
The belt tensioner is a pulley that helps keep tension on the engine belts