This was posted some time ago and applies specifically to the bx24 but may also apply to yours.
" These boots are exposed, and rip easily if you drive thru bushes or sticks. If you ask kubota for a new boot, the only part number that can find is the whole tie-rod end ($46 just to get the little rubber boot). The boot as in the last pic (Kubota part K1253-01660) costs about $11.34 at your dealer, is exactly the same as the original but it's NOT LISTED in the BX parts list. You have to ASK specifically for part# K1253-01660. Even in 2014, Kubota dealers don't know this because it's not in the BX list. Because everything is on the computer, there's no place for the dealer to write a note for the next customer. oldtommyboy found found this and posted it in 2014. It's like an archeological dig. "