I think the parts came off a 2000 Harley Davidson FLH Touring FLHPI police air breather with parts. I would have to take my filter off and go to my Harley Davidson shop to get the right part #s to post. You just have to make the little black plate that goes in the snorkel.
Its all very easy to do. It only took my three hours from start to finish to make plus a 12 pack of Newcastle beer.