The KW Self-Propelled, Straddle Type Windrow Turners can be fitted with your choice of Caterpillar, Cummins or John Deere Engines. McLaughlin Body Company Cab (John Deere) with Heater and Air Conditioning as standard. KW New Style Patented Drum. Tube is 16" in Diameter with 1/2" Wall and 3 7/16" Shaft Running the Full Length of the Drum. Flails are Fixed to Holders Welded to the Drum. Flails are hard surfaced for longer wearing. Belt Driven, Clutch Engaged or Hydraulic Variable-Speed Drum. Wheels Driven Hydraulically Using Wheel Hubs (Planetary Gears). Tunnel Lining of Rubber.  Rubber Flaps Covering Both Front and Rear Tunnels. Available Options: Various Engine Sizes and Brands - Various Tunnel Sizes - Drum Driven Either Hydraulically or with Belts and Clutch Engaged - Two Drum Styles - Various Tire Sizes -- Both Front and Rear - Full Tracks Instead of Tyres - 4-Wheel Drive - Water Delivery Systems - Reversible Radiator Fan.