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  • 72 hp (53.7 kW) Yanmar® Tier 4 Final and EU Stage V emissions compliant Turbo-Diesel Engine
  • Full-Time 4-Wheel Drive with CrossTrax™
  • 16 ft (4.88m) Cutting Width; up to 20.8 acres/hr (8.4 hectares/hr)
  • Ground Speed - Mowing: 0-10.8 mph (0-17.4 km/h) Transport: 0-20 mph (0-32.2 km/h)

The Groundsmaster® 5900-D and 5910-D rotary mowers offer an impressive 16' (4.88 meter) cutting width for making quick work of even the largest jobs. Equipped with a 72 hp (53.7 kW), diesel engine, the 5900-D and 5910-D are powerful and efficient. The onboard InfoCenter™ provides diagnostics to identify potential maintenance issues. These features, along with the SmartCool™ system with an auto-reversing cooling fan, ensure a long, productive life. Users can choose the open-air 5900-D model, or the climate-controlled, safety cab 5910-D model.

Configuration Options:

  • Groundsmaster 5900 with ROPS
  • Groundsmaster 5910 with All-Season Safety Cab

EnergySmart Efficiency

Innovative system designs improve horsepower efficiency through: Hydraulics: (12hp savings) Cooling: (7hp savings) Cutting: (10hp savings)

Smart Power™

Smart Power allows the operator to effortlessly maintain the correct speed for optimal cutting.

Mows 20.8 Acres/Hour

One Groundsmaster 5900 has the equivalent production of two 11 ft mowers or four 6 ft out front rotaries.

Powerful Tier 4 Engine

3.3L (202cu. in.) Yanmar Tier 4 Final Compliant turbo-diesel engine, 72 HP (53.7kW) @2500 rpm, 206 lb. ft. (279 Nm) torque @1625 rpm, B20 diesel compatible.

0" Uncut Circle

The ability to mow a 0" uncut circle - without wheel brakes - allows you to easily mow striping patterns without leaving any grass uncut.

Flexible Cutting Width

With the ability to mow widths ranging from 57" (145 cm) to 192" (487 cm) the Groundsmaster 5900 has the flexibility necessary for nearly any mowing need.

HybridDrive™ Cutting Deck System

Belts transfer power more efficiently than hydraulic motors while adding a layer of protection against hydraulic failures. Large diameter spindle housing dissipates impact loads, and dual tapered roller bearings last up to six times longer than ball bearings.

Heavy Duty Spindle

Ductile cast iron spindle housing is large in diameter [ 9 in. (229 mm) at the base] to dissipate impact loads. Dual tapered roller bearings last up to six times longer than ball bearings.

All Time Traction Assist

CrossTrax® all-wheel drive system offers increased cross wheel traction control.

Onboard InfoCenter™

The onboard InfoCenter™ gives the operator a quick read on all systems and even provides assistance at the right moment.

eFan Cooling System

Two independently controlled 24v electric fan banks provide system cooling for hydraulics and engine.


The SmartCool™ system prevents over-heating with auto-reversing cooling fans.

Reduced Operator Vibration

4-way adjustable seat and air-ride suspension isolate the operator platform to reduce noise and vibration.

All Season Safety Cab

The optional, factory installed, permanent safety cab protects the operator with a four-post rollover protection structure (ROPS), tempered safety glass, and climate controlled environment including both air conditioning and heater.

  • Engine
    72 hp (53.7 kW) Yanmar® 3.3L turbo diesel
  • Fuel Capacity
    35 gal. (132L)
  • Mowing Speed
    0-10.8 mph (17.4km/h)
  • Transport Speed
    0-20 mph (0-32.2 km/h)
  • Cutting Width
    16 ft (4.88 m)
  • Engine Displacement
    202 (3.3L)
  • Weight
    Approx. 6,710-7,304 lbs. (3,043-3,313 kg)
  • Warranty Two year limted warranty.

    For complete product warranty information contact Toro Customer Service

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Atomic® Mulching Blades

Atomic® mulching blades feature an aggressive "tooth" design that shreds grass and leaves into small particles. The teeth curl upward behind the blade to suspend clippings in the chamber so they are cut and re-cut until they virtually disappear.

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Leaf Mulching Kit (5900)

Mounts to the deck to pulverize fallen leaves into fine mulch.

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Rotary Broom

The rotary broom sweeps parking areas, walkways, and turf of dirt, leaves and snow.

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This is the perfect blizzard battler. The 53 in (135 cm) wide Erskine™ snowthrower throws snow up to 30’ (9.1 m) while clearing paths down to the ground. *Shown on a Groundsmaster 5900

Documents Type Language
Data Sheet Groundsmaster 5900/5910 Sell Sheet English PDF
Product Literature Groundsmaster 5900/5910 Series Brochure English PDF
Accessories Groundsmaster 5900 Series Accessories English PDF
Specifications Groundsmaster Large Rotary Productivity Chart English PDF