Parts such as the Cam Chain - Tensioner: O-ring,6.5x3.1, Bolt,hex Kno 7x17, Collar,7x13.2, Chain,cam are included in the Cx500 1978 Italy Cam Chain - Tensioner parts fiche.
The Cam Chain - Tensioner is made up of components including this Guide,cam Chain which is the most expensive.
Check out any of the nineteen Cam Chain - Tensioner components enlisted.