Oliver cletrac track model number BDH engine model DJXC engine number L814755 engine had been completely rebuilt before I purchased.Six-cylinder Hercules diesel 1400 RPM the rest of the unit appears to be in good condition I've owned it since 1975 stored inside I believe it is a 1949 model Best my knowledge Engine runs very smooth Someone's interested in the Unit more than happy to show the unit located Mandan.N.D. I have a tractor book that list the specs for this tractor supposed to be able to handle 4 to 5 plows , 36.07 hp pull 7530 pounds and it has 4 forward gears and 2 reverse Hercules Diesel 3.75 x 4.5 1400 RPM diesel six-cylinder is considered a hillside (special )The weight is 9000 pound seem to be appreciated . I just dropped the price $500