Replacing the old cover with this new OEM component during the refurbishment of the machine it fits will give a lot of satisfaction. And with the values of VTX1800C models in the ascendancy, a well worthwhile investment.
Alternatives:
Check out the other parts required on the schematic for your model.
The more parts you order in one hit, the better value the shipping costs. New grommets 83551300000 will probably be required to avoid the cover detaching - not good!