The “435” was in production for less than eleven months, spanning the 1959 and 1960 model years. After two decades of Diesel Tractor production at Waterloo, this was finally the John Deere Dubuque Tractor Works’ only Two-Cylinder Diesel intended primarily for agricultural duty. It was also Dubuque’s most powerful Two-Cylinder Tractor, with 33 horsepower at the PTO Also, a variation of the traditional ag green-and-yellow tractors, those “435s” that left the factory painted Industrial Yellow are among the rarest of all John Deere Tractors. See the Show Version for an AG Green version!.