- 55 hp (41 kW) Yanmar® turbo diesel engine, Tier 4 Final compliant
- 4WD, All-Time Traction Assist
- Smart Power™ - Optimized mowing in all conditions
- SmartCool™ Auto-Reversing Fan
The Groundsmaster® 4000-D is the strongest most productive 11 foot (3.4 meter) mower available today. With the Yanmara® turbo-diesel, 55 hp (41 kW), engine you can quickly mow through a variety of cutting conditions. The 4000-D has the rare ability to mow a 0 degree uncut circle without the use of wheel brakes.