This OEM C5 belt tensioner is a direct replacement that is easy to install. It is normal for the tensioner to wear out over time, especially if there's rust or if the pulley got damaged. But replacing it at the first sign (typically the fluttering sound a loose belt) will prevent further damage to the AC system. Don't take the risk of your worn-out belt tensioner causing your serpentine belt to slip out of place. Simply get the Corvette Air Conditioning Belt Tensioner from Corvette Mods with a price match guarantee and you can have a fully restored Corvette.