I called my local Kubota parts department to buy a starter solenoid rebuild kit. Two persons in that department did not understand what part I am talking about. I tried to describe the parts to them to no avail. They wanted to sell me the whole starter unit. About 6 months ago when I just got the tractor, I removed the starter solenoid assembly and cleaned, sanded away the dark spots on the copper contact posts and copper ring on the plunger. There are rebuild kits on eBay and elsewhere on the net but getting the right part is difficult because there is no part number in the Kubota parts diagram. Anyone has info on this. Many thanks.