Shop Belt Tensioners. Discover Drive Belt Tensioners & Pulley. Find Belt Tensioner Tool. Order Serpentine Belt Tensioners. Explore Belt Tensioner Assembly. Regular maintenance of your vehicle's belt tensioners is crucial for peak performance and longevity. Look for signs of wear such as squeaking noises or a slipping belt, which often indicate it's time for a replacement. When selecting a new tensioner, consider the type—automatic or manual—and ensure it matches your car's specifications. Opt for high-quality materials like steel or aluminum for durability. Installation is straightforward, but precise adjustment is key to avoid undue stress on the belt, which could lead to premature failure. Keep these tips in mind to maintain optimal function and drive with confidence.