Hey - my 2009 Kubota
M6040 has a seven pin connector as OEM equipment. I could pull a something that had electric or electric over hydraulic brakes. If I pull my farm wagon out on the county road I darn well better have lights on it and a slow moving vehicle triangle.
View attachment 592360 And if I did it regularly with a heavy load I also better have SOME type of braking system. My farm wagon is rated at 20,000#.
I would say all utility tractors the size of mine and bigger have seven pin connections. It's standard equipment.
And regarding the drawbar. My drawbar is mounted on my tractor all the time. Why - it's just awful darn heavy to be lugging around all the time. Attaching the pin requires that I lay on my back and scoot under the rear of the tractor. Something that gives me no pleasure in the snow or mud.
You will not tell where that tractor has been by the drawbar type or that it has a seven pin connector.