I think you have bought a GRAY market tractor. That is why you cannot find any parts or other info.
Take your time and read thru the GRAY section on this forum and you will find the North American equivalent. Likely it will be L245.
Don't ask a Kubota dealer for parts for a GRAY model as they are forbidden to help you with these improperly imported machines. Instead find the NA equivalent and seek parts for that tractor.
Dave