(formerly published by Primedia) are used by experts to verify that a serial number like corresponds to a 1980 model Check the Operator's Manual:
World Manufacturer Code (factory location). John Deere 7000 Planter Serial Number Year Of Manufacture
Why? When the 7000 planter launched in 1975, John Deere assigned serial number blocks by assembly plant and configuration (drawn vs. rigid hitch, 4-row vs. 12-row). A tractor rolling off the Waterloo line got a sequential number. A planter from the Valley City, ND, plant did not follow the same sequence. (formerly published by Primedia) are used by experts