Kohler PA-ECV980-3012 Engine 1" x 3-5/32" Crank Vertical Shaft Electric Start 38 HPKohler PA ECV980 3012 Engine 1" x 3 5 32" Crank Vertical Shaft Electric Start 38 HP Introducing the new KOHLER Command PRO EFI 999cc with ETB technology. Whats ETB you ask? Stands for electronic throttle body in English that means you get more power to your mower blades in faster time. Were talking crazy power. Wet grass, tall grass, hills, pumpkins, corn fields now theres nothing you cant cut. Features: More Power the ETB electronically controls