Serial numbers 8400000-8400848 are known to have been built, final s/n unknown. S/n 8401135 is the highest serial numbered Model 840 known to exist.

John Deere 840 Hancock '1958 Произведены 63 единицы

Tractor-scraper.

Serial numbers 8400000-8400062.

John Deere 840 new style '1959 Произведено 619 единиц

Serial numbers 8400200 and up.

John Deere Chevron Flight 400 Scraper '1960

AutoWP.ru '2005–н.в.