The air cleaner you have on your avatar, (orange) looks like a spare I have. Not sure what it came off of... Found it at a swap meet last year. Has two snorkels, different sizes.Has the original label. Date of Manufacture Sept. 1984...For a 5.9. The label is almost new looking..I sanded and repainted the inside and outside black...Left the label. Yours is the only other one I have seen...Do you know what it was on originally?