Kubota B2410 Bi-Speed Turn, R4's, Top 'N' Tilt, LA 352 Loader w/ Toothbar
I use a Midwest 3060 5' box on my B2410. It weighs 541 lbs and my rear tires are loaded with calcium chloride. I would say the box is on my tractor at least 50% of the time, if not more. It is absolutely no issue carrying on my tractor.
I can't think of a good reason to spend the money on a Kubota branded box.