Hello. I'm trying to find a part number and/or supplier for a particular fuel hose on my 1972 220D. The hose runs from right near the primer pump up to the pre-filter (or in-line filter). It's a strange looking hose, mostly bare rubber, but with a very short length of cloth-covered where it meets the filter. The part appears in part catalog #12813 on page 62, and is labeled 64. Any help is greatly apprecieated. Thanks! Clayton