I would suspect that it uses Kubota UDT. Check with your local Kubota dealer to find out for sure.If you don't have a dealer in your area, fill out your bio and I'm sure someone can help you locate one in your vicinity. This site is a wealth of knowledge and the many members will chip in and help you out, they're a great group of people here. BTW Welcome to TBN!!! /forums/images/graemlins/grin.gif