I have an old sanborn compressor I am trying to find parts for its an old oil less 2hp. Model wl200401sj. I think the part numbers have changed over the years but as far as I can tell these are the differnt part numbers I have found for this unit. 165-0090. 165-0087. And 048-0068. Other kit numbers. Kk-4821. Kk-4863. The casting number on the rod is cac-240. Cylinder ID 2 3/8. Rod length. 1 3/4. Cylinder height 1 3/4. Any help would be great. I have no problem mixing and matching parts thanks again