Fits For 2003-2008 Chevy GMC Cadillac Hummer Serpentine Belt Drive Component Kit Features: Serpentine drive belt tensioner kit enables better Engine performance according to the prescribed pressure and tension it applies on the belt. Engine Drive Belt Tensioner is made of good quality materials to improve reliability and durability. A failing belt tensioner can also couse problems like increasing noise during rapid acceleration, juped timing, disordered ignition and air distribution. With new tensioner, all these problems can be solved. .
