Of all the components used in this assembly the Camshaft Assy 1 is the most expensive.
Some items from this specific schematic: Plate, Tensioner Assy, Cam Chain, Bearing, Bolt, Flange(4my).
This part-list fiche shows all the components that make up the Xt660x 2004 1d21 Sweden 1c1d2-300f3 Camshaft & Chain .