Hi, I am new to this site. I hope someone can help me to find out about my Zen-Noh ZB6001. This is a fantastic tractor and does all I need it too, however parts are the problem. My questions are as follows: what is the Kubota equivalent, what Hp does it produce and how old is it? The number printed on the side is B6001-25805 and it has a 3 cylinder engine. Thank you .