farm tractors mostly run on diesel cycle engines which typically are more efficient when utilized with odd number of cylinders. A 4 cylinder would most likely run on gasoline.
Kits of old tractors, that's gonna be tough. I don't know of anything currently available in 1/24 and 1/25 scales which are the more common scales for vehicle kits. I think you would have better look with diecasts. However Ertl did make some construc...
farm tractors mostly run on diesel cycle engines which typically are more efficient when utilized with odd number of cylinders. A 4 cylinder would most likely run on gasoline.