John Deere 8630 Price, Reviews, Specs, Engine Oil Capacity, Weight, Serial Numbers, Attachments, History, Features & Pictures John Deere 8630 Four-wheel Drive (4WD) Tractor was equipped with a John Deere turbocharged diesel 6-cylinder liquid-cooled 619 ci [10.1 L] engine, which delivers 275 hp [205.1 kW] power at rated rpm 3200. John Deere 8630 Four-wheel Drive Tractor … [Read more...] about John Deere 8630 HP, Price, Specs, Weight, Review