2025 Toro Groundsmaster® 5900 Series 5900 (31698)
- Year 2025
 - Make Toro
 - Model Groundsmaster® 5900 Series
 
2025 Toro Groundsmaster® 5900 Series 5900 (31698)
The Groundsmaster® 5900-D rotary mower offers 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 is 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.
Features may include:
Mows 20.8 Acres/Hour- One Groundsmaster 5900 has the equivalent production of two 11 ft (3.4m) mowers or four 6 ft (1.8m) out front rotaries.
 
- We designed this machine to be powerful, yet energy efficient. System designs improve horsepower efficiency through: Hydraulics: (12hp savings) Cooling: (7hp savings) Cutting: (10hp savings).
 
- 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.
 
- 4-way adjustable seat and air-ride suspension isolate the operator platform to reduce noise and vibration.
 
- The ability to mow a 0" (0 cm) uncut circle - without wheel brakes - allows you to easily mow striping patterns without leaving any grass uncut.
 
Engine
							Engine Manufacturer
							Yanmar®
						
						
							Cylinder Liners
							4-cylinder
						
						
							Engine Power
							72 HP (53.7 kW) @ 2500 rpm
						
						
							Engine Torque, Maximum
							206 ft.-lbs. (279 Nm) @ 1625 rpm
						
						
							Displacement
							202 cu. in. (3.3 L).
						
						
							Emissions
							EPA Tier 4 Final and EU Stage IV emissions compliant 
						
						
							Cooling
							Liquid Cooled
						
						
							Starter
							Key Start
						
						
							Air Filter
							Dry, replaceable primary and safety elements
						
						Drivetrain
							Steering
							Power steering with dedicated power source. Steering wheel tilts to desired operator position.
						
						
							Drive System
							4WD
						
						Fuel System
							Fuel Type
							Diesel / Biodiesel
						
						Battery
							Battery
							12V
						
						Electric
							Electrical
							System: 12-volt, 690 cold cranking amps battery, 80 amp alternator. Overload protection with automotive type fuses.
						
						Wheels & Tires
							Tires, Front Specification
							29" x 12" - 15", 6-ply
						
						
							Tires, Rear Specification
							23" x 10.5" - 12", 6-ply
						
						Operational
							Operating Conditions
							Mowing Rate (Productivity): Up to 20.9 acres/hr (8.5 hectacres/hr)
						
						
							Operating Speed
							Ground Forward / Reverse: 0 - 20 mph (0 - 32.2 km/h)  / 0 - 10.5 mph (0 - 16.9 km/h) | Mowing: 0 - 10.8 mph (0 - 17.4 km/h)
						
						Chassis
							Frame Type
							All welded formed-steel frame with integral tie-down anchors
						
						Dimensions
							Dimensions
							Ground Following: 6" anti-scalp cups on each blade, adjustable skids, 3 anti-scalp rollers on front deck and 1 on each wing. 
						
						
							Ground Clearance
							10.3" (26.1 cm)
						
						
							Height
							85" (216 cm) | of Cut: 1" - 6“ (2.5 cm - 15 cm) in 0.5" (1.3 cm) increments
						
						
							Length
							174" (442 cm)
						
						
							Overall Width
							199" (505 cm)
						
						
							Transport Width
							99" (251 cm)
						
						
							Wheelbase
							77" (196 cm)
						
						
							Cutting Width
							All three decks: 192" (488 cm) | One wing: 57" (145 cm) | center deck: 92" (234 cm) | center deck + one wing: 144" (366 cm)
						
						
							Spindle Diameter
							1.25" (3.2 cm) | Housing: 9" (22.9 cm)
						
						
							Turning Radius
							Uncut circle - 0" diameter. Turning radius - 86" (218 cm)
						
						Capacities
							Fuel Capacity
							35 U.S. gal. (132.5 L)
						
						
							Hydraulic Capacity
							19 U.S. gal. (71.9 L)
						
						
							Oil capacity
							11 U.S. qt. (10.4 L)
						
						Weights
							Weight
							6,710 lbs. (3043 kg) with full fluids
						
						Features
							Features
							Blade Style/Type: Rotary | Number of Blades: 11 | Hydraulic Fluid Type: Toro PX™ Extended Life Hydraulic Fluid 
						
						
							Construction Material, Deck
							11-gauge high-strength steel. 7-gauge, reinforcements, bullnose bumpers.
						
						
							Cooling System
							Description: Single pass cooler, 6.3 fins per inch, Smart Cool™ variable speed radiator cooling fan with automatic (based on coolant and oil temps) and manual reversing capabilities.
						
						
							Seat Type
							4 -way adjustable seat with vinyl cushions. Air ride suspension with 3" (7.6 cm) of adjustability.