I was looking thru some boxes (for something else) that I haven't touched since we moved to town over six years ago, and found the subject part. Back when I owned the 140 H1, I had some trouble with this tube, having at least two of them break on me. So I ordered an extra, but the last time one broke, I got some really high pressure hose and clamps from a local auto parts store, and used that to make the repair. Never had a problem again.
After joining this forum, and following many posts, I think the tube was probably breaking because the valve, etc. at one end of the other of the tube was loose or needed to have it's position adjusted.
JDparts says it is $26.42. If anybody is interested, I would sell it for alot less. It is part AM33284, number 3 in the attached diagram/parts list.
AM33284 Primary Return Tube.PDF 111.34KB 96 downloads
Edited by hdg4400, April 19, 2013 - 02:10 PM.