John Deere 8850 Price, Reviews, Specs, Engine Oil Capacity, Weight, Serial Numbers, Attachments, History, Features & Pictures The John Deere model 8850 was the largest of the four-wheel-drive tractors that John Deere revealed in 1982. Its big V-8 was a departure from John Deere's usual engine design. The John Deere 8850 had an available full-power PTO and Load-and-Depth … [Read more...] about John Deere 8850 Horsepower, Price, Specs, Review