2025 Toro Groundsmaster® 5900 Series 5900 (31698)

Information

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.
EnergySmart Efficiency
  • 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).
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.
Reduced Operator Vibration
  • 4-way adjustable seat and air-ride suspension isolate the operator platform to reduce noise and vibration.
0" Uncut Circle
  • 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.

Photos

Highlights

  • 15 States, Across US
  • 2025
  • Toro
  • Groundsmaster® 5900 Series 5900 (31698)
  • 3.3 L Yanmar® EPA Tier 4 Final and EU Stage IV emissions compliant turbo-diesel engine
  • Diesel / Biodiesel
  • Available
  • Transport: 99" (251 cm)
  • 85" (216 cm) | of Cut Range: 8-Blade: 1" - 6“ (2.5 cm - 15 cm) in 0.5" (1.3 cm) increments

    • Specifications

    • 2025
    • Toro
    • Groundsmaster® 5900 Series
    • 5900 (31698)
    • Riding
    • 3.3 L Yanmar® EPA Tier 4 Final and EU Stage IV emissions compliant turbo-diesel engine
    • Liquid Cooled
    • 72 HP (53.7 kW) @ 2500 rpm
    • 202 cu. in. (3.3 L).
    • Diesel / Biodiesel
    • Diesel | Traction Drive: 4WD
    • Power steering with dedicated power source. Steering wheel tilts to desired operator position.
    • Full time automatic forward and reverse 4WD in low (mow) range. Front drive: 2-speed, fixed displacement high torque, low speed radial piston motors. Rear drive: single speed, fixed displacement, high torque, low speed radial piston motors.
    • Parking: Electrohydraulic controlled via double-motion rocker switch. Service: Dynamic, hydrostatic 4WD in low range. Front wheel drive braking in high range.
    • 12V
    • System: Main: 12 volt system; Alternator: 12V, 80 amp, supplied w/ engine Battery: 1380 CCA (2x 690 CCA), Cooling Fans, Engine/Hydraulic cooling: 24 volt system; Alternator: 24V, 105 amp w/ remote sense; Battery: 350 CCA; Disconnect ON/OFF switch for 12 & 24 volt service safety.
    • 29" x 12" - 15", 6-ply
    • 23" x 10.5" - 12", 6-ply
    • Ground Speed - Forward: 0 - 20 mph (0 - 32.2 km/h) | Ground Speed - Reverse: 0 - 10.5 mph (0 - 16.9 km/h) | Mowing Speed: 0 - 10.8 mph (0 - 17.4 km/h)
    • All welded formed-steel frame with integral tie-down anchors.
    • Product: 174" (442 cm)
    • 85" (216 cm) | of Cut Range: 8-Blade: 1" - 6“ (2.5 cm - 15 cm) in 0.5" (1.3 cm) increments
    • 199" (505 cm)
    • Transport: 99" (251 cm)
    • 192" (488 cm)
    • 35 U.S. gal. (132.5 L)
    • 6,710 lbs. (3043 kg) with full fluids
    • Blade Style/Type: Rotary | Number of Blades: 11
    • Cutting Unit Type/Configuration: Three rear discharge rotary decks. All three decks: 192" (488 cm), One wing: 57" (145 cm), center deck: 92" (234 cm), center deck + one wing: 144" (366 cm)
    • InfoCenter™: Shows gauges, service reminders, advisories/faults and troubleshooting assistance. Shows fuel level, coolant temp, hydraulic oil temp, engine glow plug, low oil pressure, air cleaner restriction, 12V & 24V alternator output, engine hours, rpm and DPF regeneration.