Had some problems recently with my 899 clutch master cylinder, this could be useful to you all in the future and save you a load of money, worth making note of for future reference, see post no 57 at bottom of page here for full details of part numbers and how to tutorial, Cheers, Poucher https://www.ducatiforum.co.uk/threads/alternatives-to-the-genuine-ducati-parts.594/page-3
Don’t know tbh, you’d have to pull the brake master cylinder apart and find out what bore size it is and then go look for the equivalent KTM seal kit which just takes a bit of time and “detective “ work