MIANYAN WANXIN currently offers a variety of types of hydraulic Auto Tensioners for timing belts. To meet the needs of the market, MIANYANG WANXIN has a product line based on a hydraulic Auto Tensioner with its excellent damping performance, such as cost reduction and compact Auto Tensioners, integrated pulley arm Auto Tensioner units, and built-in pulley type Auto Tensioner units. In addition to Auto Tensioners for timing belts, we also offer Auto Tensioners for timing chains (for automobiles and motor cycles) and Auto Tensioners for accessory drive belts that are needed for the serpentine drives.