Part number required for the lower spray arm feed hose. Its a black rubber hose about 2 inches long with a white plastic insert at one end for spray arm connection. Other end to circulation pump.
Model is a BFI68, 😉 I have edited the thread title.
Unfortunately there appears to be a mistake ( one of hundreds, possibly more) on Partfinder, it shows this hose as part 51 on the diagram but 51 is missing from the parts list. 😥