The timing chain is an integral part of the combustion engine. As a connecting element between crankshaft and camshaft, it ensures precise synchronisation and often drives other components as well. The function of the chain tensioner is to keep the chain drive under tension at all times. This also includes compensating the elongation of the chain due to wear by re-tensioning. If the chain tensioner no longer works 100%, this has a negative effect on the other components of the chain drive. This can result in major engine damage. Chain tensioners from febi are manufactured according to the specifications and standards of the original equipment manufacturer to guarantee a perfect fit and long service life.