John Deere 400 Price, Specs, Serial Numbers, Reviews, Horsepower, Engine Oil Capacity, Attachments, History, Features & Pictures John Deere 400 Price, Reviews, Specs: John Deere 400 Garden Tractor is equipped with a Kohler KQ532 gasoline 2-cylinder air-cooled, 879cc engine, which delivers 19.9 hp (14.8 kW) power at rated rpm 3500. John Deere 400 Garden Tractor featured … [Read more...] about John Deere 400 Price, Specs, Reviews & Attachments