Professional Automotive Belt Tensioners and Pulleys Great performance at a great price that"s ACDelco Professional Belts and Hoses. With a full range of Belts and Hoses, as well as Belt Tensioners and Pulleys, Timing Component Kits, Oil Seals Hose-Bending Coils, Clamps, and Bulk Hose Products, the ACDelco Professional line can meet all of your Belt and Hose needs and your budget. Built to look and fit like the original GM part, ACDelco Professional Automotive Belt Tensioners and Pulleys are an ideal replacement for worn equipment. The perfect complement to our full line of belts, ACDelco Belt Tensioners and Pulleys are the pro"s choice.