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Toro Groundsmaster® 5900 Series 16ft Mower

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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.

  • 72 hp 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)


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 cu.in. (3.3L)
Weight Approx. 6,710-7,304 lbs. (3,043-3,313 kg)