BigDog zero-turn mowers are powerful, air-cooled mowers that come with a seven-year warranty, though the engines have a shorter warranty. BigDog mowers also feature a dual hydrostatic drive system and a patented automatic braking system.
The horsepower of each BigDog mower is determined by the deck size. Mowers with a 36-inch deck come with a 15 horsepower Kawasaki engine. Mowers with 42-inch decks come with a 22 horsepower Kohler engine. Mowers with a 52-inch deck come with a 24 horsepower Kohler engine. These engines propel the mowers forward at speeds of up to 6.5 miles per hour, and in reverse, they can go as fast as 4 miles per hour.