I called the shop and they didn't get it in, However, Derrick, the parts guy, said come on down and we'll give you one off a new bike. So, I did. And I'm back in business!
Actually the caps, connectors, boots or whatever you want to call them, they are different in every parts book I looked at, are actually Japanese by NGK! Unless they have a factory in Italy. But, having gone through a lot of NGK catalogs, I never did find a reference to this particularly one, which is neoprene. So it may be a specific Guzzi OEM part. There is a similar one that is made of plastic which is what I ordered from Bike Bandit. I hope they fit so I can have a spare.
Bare