"Hi, bought this tractor used about 5 years ago. Ask in another forum about some info and someone tell me there is no Mit. D1501. It is a 2 cyl. (15hp on the PTO) water cooled Mitsubishi diesel engine. It is a very small but though little machine, being used in a aprox. 2 acre land for mowing and many other chores here in the north west coast of the island of Puerto Rico about 2 or 3 miles from the beach. Is a very reliable tractor. Broke a PTO seal about 2 years ago. It was my fault. Got some luck and find it in a local auto part store. From what I found in the net is a tractor from the early 80's."