Get stand-up performance with the ZS4000 zero-turn stand-on mower. The ZS4000 is equipped with commercial-grade features including the bullnose AirFX™ cutting system, a low center of gravity and   tool-free controls – all designed to let you maneuver through tough obstacles with total confidence. Equipped with a powerful Kawasaki® FX series engine, this zero-turn mower also boasts a heavy-duty drive system for quick ground speeds.