I happen to be repainting my Kubota now. As Rodworthy said you should try buffing it out with a compound and see if you can restore the shine. I found that while wet sanding my hood and loader I was able to bring a lot of the color back. Since I was planning to paint I continued sanding past that point.
If you really want to shine it up try auto detailing clay with soap, some compound, polish and a then wax. Can do everything with an orbital sander with the exception of the clay.
Let us know how it goes.
If you have already reached the Kubota Mary Kay Pink color hue, a repaint will likely be your only option.


Here is a before and after photo of my loader when I purchased it. You can see what the paint looked like after compound, polish and wax. Made a huge difference and your tractor is a year newer. Of course, it isn't forever and you may need to do this a couple times a year but at least it may put off a paint job.
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I will certainly give that a try on my L48 Kubota, but compounding the backhoe actually seems like it would be more difficult than repainting.
Repainting is a lot like compounding just with a much coarser sandpaper. I can't imagine it being nearly the work that degreasing, sanding, priming and painting will be. Worth a try.
Wor
Kubota has a problem with their made in America stuff. I’ve owned mostly Japanese built tractors but they get the USA built loaders and in a few years I have 2 tone orange. Dealers lot should be embarrassing to Kubota; I know it is to my dealer because I keep pointing it out. Not sure if it is emissions or toxicity of the paints - I’ve gone through this before. At Cat our marketing department surveyed dealers & customers North America, Europe and Japan. USA results were low on finish while Europe and Jaoan expected automotive finish. Consequently our European and a Japanese plants spent a lot more time insuring fit and finish. North American customers getting European built machines would find Bondo smoothing surfaces and ask what we were trying to hide but had no problem with major rust pitting. Not sure if finish reflects the rest of the machine but I spend a lot of time and money keeping my 197 hour GR2120 going while my French built M7 with 589 hours has had only 2 software flashes.