The O-ring (2h9) is the cheapest item from this partsfiche.
The forty-three Xvs650 1999 4vr7 France 294vr-351f1 Crankcase Cover 1 component parts are all listed in this schematic.
Some items from this specific schematic: Bolt, Socket, Element Assy, Oil Cleaner, O-ring (22u), Oil Seal.