The sub assemblies and components that make up this Crankcase Cover 1 include this Crankcase Cover Assy 2, the most expensive part.
This schematic depicts all components used in the Xj600s 2000 4lx7 Holland 104br-300e1 Crankcase Cover 1 partslist.
In this schematic the "Bolt, Washer Based(4eb)" is used most often.