John Deere 4040 Specifications
1978 to 1982
100 Horsepower Engine
The John Deere 4040, produced from 1978 to 1982 as part of the Iron Horses Series, is a row-crop tractor built in Waterloo, Iowa, USA. It features a 6.6L 6-cylinder diesel engine and offers multiple transmission options, including a 16-speed partial power shift and an 8-speed fully synchronized transmission. The tractor has a claimed drawbar power of 77 hp and PTO power of 90 hp, while tested figures show 76.56 hp and 90.80 hp, respectively. Variants include 2WD and 4WD models, with original prices in 1982 ranging from $29,992 to $36,549.