Gravely Pro-Turn 572 - 31 hp Kawasaki FX921V V-Twin, w/72" Fabricated X-Factor 3 deck, Parker HTG Transaxle 992512Description: This is the Pro Turn 500. A commercial grade mower for professionals who want rugged durability without sacrificing features and performance. Better seating, better tires, better mowing deck, and a better transmission make the Pro Turn 500 the better choice. Specification: Model Number: 992512 Power Train Engine: Kawasaki FX921V Horsepower: 31 HP Engine Displacement: 61 in 999 cc Fuel System: Gas Fuel Capacity: 12. 5 gal 47. 3 ltr Drive