I have a question I just got a 3pt hitch wood splitter I sanded it all down to bare metal should I prim then use the Kubota paint or just the paint?
Since you are down to bare metal it would be best if you used a self etching primer.
For $40 a quart, I'd just buy the Kubota factory paint. You can get it for $38/qt. from some dealers.
Not all dealers carry quarts or gallons of paint.