The timing belt tensioner has been widely used by a lot of car manufacturers these days for it is essential in reducing the slack tendency of the belt as well as conveyance of the drive torque in a uniform condition. It applies and sustains a correct tension on a power transmission drive system. A vehicle that uses a belt tensioner also reduces the vibration and the noise that is produced during the travel. It also aids in increasing the lifespan of the other drive components installed in a car including your 1997 Volkswagen Jetta. In some designs, the timing belt tensioner is fixed in place after being installed whereas other designs still requires adjusting its screws to reposition its parts. In a spring loaded tensioner, the tension is maintained automatically as the belt is stretched. For floating tensioner, it is connected on the belts without using opposing pulleys or sprockets. You can also find tension rings in this device; it spins with the drive while being attached on the side of the belt or in between the drive or the pulley. The timing belt tensioner may identify the maximum tension that the vehicle should maintain. You can find these tensioners in a variety of styles, sizes, and materials. Each design can handle a certain amount of load and level of temperature. The timing belt tensioner is really an advantage to your vehicle, so its condition as well as its sub components must also be in tiptop shape always. If you want your 1997 Volkswagen Jetta to run efficiently and comfortably, A5030-162073 SKF Timing belt tensioner metal roller can provide you some help.