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Hydro Gear ZT-4400 Transaxle

Hydro Gear ZT 4400



With a revolutionary hydraulic design, Hydro Gear's ZT-4400™ is an industry first: improving operator control while reducing vibration and noise.

Our most highly efficient commercial drive designed for high performing commercial ZT mowers.


  1. Heavy duty axial piston hydraulics providing high starting torque

  2. Internal wet disc brake

  3. Standard charge pump and shock valves