Onan QD 5500 Generator Fill Tube Info. [1 Attachment] June 26, 2013, 10:22:17 am Yahoo Message Number: 11295I replaced mine on the Four Winds Chateau 2 years ago, it was still the rubber version. I did not have to drop the genset, but it was a very tight fit. Using ball head hex wrench makes it easier.Roger Quote Selected