McCormick-Deering OS-4

The McCormick-Deering OS-4 is a tractor model from a past era, without a known specific category but possibly fitting into the utility tractor category due to its size and engine type. It's powered by a four-cylinder International Harvester gasoline engine with a liquid-cooling system. The engine has a displacement of 152.1 cubic inches, with a bore of 3.375 inches and a stroke of 4.45 inches, rated at 1650 RPM. Transmission details are limited to a gear type with 5 forward and 1 reverse gear. We don't have specific details on chassis, drive type or engine power output. The physical dimensions place it at a length of 120.875 inches, a width of 55.5 inches, and a height of 57.125 inches, with an operating weight of 4,120 lbs. The tractor rolls on front tires that are 5.50 inches wide and has a wheelbase of 66.75 inches. While some data, such as PTO and hydraulic system details, are unavailable, the OS-4 seems like a straightforward and traditional piece of farming equipment.