John Deere 4050 Price, Reviews, Specs, Engine Oil Capacity, Weight, Serial Numbers, Attachments, History, Features & Pictures John Deere 4050 Row-Crop Tractor was equipped with a John Deere diesel 6-cylinder liquid-cooled engine, which delivers 130 hp (96.9 kW) power at rated rpm 2200. John Deere 4050 Row-Crop Tractor had a John Deere 7.6L 6-cyl diesel and John Deere … [Read more...] about John Deere 4050 HP, Price, Specs, Reviews