Weather cap to prevent water snow and debris from entering your exhaust pipe. Universal fit for many exhausts on tractors skidsteers dozers and other heavy equipment. We have many other sizes available.  May fit many more makes/ models than what is listed.
 
4" inch Fitment
Allis Chalmers P/N: 70269408V
John Deere P/N: AR86603
Massey Ferguson P/N: 1022537M91
Various P/N: 70269408, WC12, S.19784