The John Deere 4040 tractor was first introduced in 1974 as a replacement for the John Deere 3010. It featured a 4.5L 6-cylinder diesel engine, producing 97 hp and a hydrostatic transmission. It was a row-crop tractor, designed for the comfort of the operator, with a wide walking platform and an adjustable seat. The 4040 was designed for heavy duty jobs such as plowing, tilling, and hauling, with a lift capacity of 5,400 lbs. It was also popular for its use in vineyards and orchards, due to its maneuverability and comfortable operation. The John Deere 4040 is still in production today, and is known for its quality and reliability.