John Deere 7830 Price, Reviews, Specs, Engine Oil Capacity, Weight, Serial Numbers, Attachments, History, Features & Pictures John Deere 7830 Row-Crop Tractor is equipped with a John Deere inter-cooled turbocharged diesel 6-cylinder liquid-cooled 414 ci [6.8 L] engine, which delivers 205 hp [152.9 kW] power at rated rpm 2100. John Deere 7830 Row-Crop Tractor featured … [Read more...] about John Deere 7830 Horsepower, Price, Specs, Review