When I purchased my tractor (paid cash) I contacted my insurance agent (who also owns a Kubota) and inquired as to what kind of insurance I already had and what did he recommend. He said to get Contractors Equipment coverage which is essentially what is called a Commercial Inland Marine policy.
This policy covers loss of the tractor and all my implements as long as I or one of my employees or family is using the equipment. Coverage is for while on my property, transportation to another site, and while on another site. Equipment I borrowed and equipment I rent to perform a job is also covered.
Losses covered include roll overs, crashes, explosions, theft as long as its not mysterious, certain damage done by the covered property such as pollutant cleanup caused by a covered loss, charges for rental equipment used to temporarily substitute for damaged equipment, fire dept. charges, removal of damaged equipment, etc.
This is not general liability coverage, just coverage for my equipment and certain actions that may have occurred during or just after whatever caused the loss to the covered property.
The cost of this coverage was $15 per $1000 of declared equipment value. Deductible is $250. I declined the $5 terrorist coverage surcharge.