John Deere SST18 Price, Reviews, Specs, Engine Oil Capacity, Weight, Serial Numbers, Attachments, History, Features & Pictures John Deere SST18 Zero-turn Mower is equipped with a Briggs & Stratton gasoline 2-cylinder air-cooled vertical-shaft V-Twin engine, which delivers 16 hp (11.9 kW) horsepower. John Deere SST18 Zero-turn mower featured with a 16HP Briggs & … [Read more...] about John Deere SST18 Price New, Specs, Review