The job of the tensioner is to ensure that the timing belt is operating at optimum tension at all times. This rotating pulley prevents the belt from becoming slack and operating inefficiently or incorrectly. The tensioner may have to be adjusted manually during fitting although many, known as automatic tensioners, have springs which automatically adjust the tension. Belt tensioners for any vehicle are an integral part of timing belt operation and should be replaced if wear and tear is spotted to prevent damage to the belt. At Aceparts.co.uk we stock a wide range of quality tensioners for all types of cars and vans, so we're 99.9% sure we will have the tensioner you require. Be sure to order online with Aceparts for a hassle free, money saving experience.