Working on a snorkle. Going to take the cap, down comer, and inline filter to hook up to my air inlet. Looked at a few 4000 series John Deere's at a dealer and they about right, maybe a little too big. I may go check out the local Kabota dealer too see how theirs' look. I am assuming going to need one off a diesel so I can get the larger diamter tubing for air supply.
Plan it to cut down the downcomer short enough so the cap just sticks out of the hood.