Excellent Condition - Runs The Oliver 80 row-crop tractors was a model of agricultural tractors produced from 1938 to 1963 by the Oliver Farm Equipment Company. The model 80 was a development of the Oliver Hart-Parr industrial tractor, for agricultural use. The initial 80 was rated for three 14-inch plows, making it a medium-sized tractor. By the time the Super 88 development was introduced, it was rated for six plow bottoms, making it a heavy tractor. The Oliver 80 was introduced in 1938 by developing the existing Oliver Hart-Parr 80 industrial tractor for row-crop use. The 80 was equipped with a Waukesha-Oliver four-cylinder 334-cubic-inch (5,470-cubic-centimetre) engine, developing 43 horsepower (32 kW), with three or four-gear transmissions.