B5100 loaders from Kubota most likely WERE available; however, they don't make the tractor any more, and probably don't make the loader any more either (parts are available). You might be able to find a used one somewhere if you are lucky.
Woods still makes loaders for some of the older B-series hydrostatic Kubotas (for example, as of Summer '98, they still offered loaders for the B7100HSD, but not for the B7100D [gear drive]).
hi i have a B-4200 - its the same basic tracter as the B-5100 - i have a loader from the factury on its - a 1620 MODEL - if you want i,ll glady send you more info or a picture as i got the book on it as well good luck - Gord
I have a B5100 as well. I went with a rear dump bucket from JohnnyBucket. It works great for moving materials around, as long as you don't need to go above 24". It was also only $500. I've got pics if you'd like to see. It is a compromise - but it leaves about $1000 left over for other toys : )
“Check out the manuals section of the is website for more info.”
What manuals section on what website? I would like to look through a manual for my B5100. By the way I have a PDF file that has a parts manual for a B5100.