Standard Features
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The Groundsmaster® 5900 is loaded with productivity-boosting advantages like the Yanmar® turbo-charged, 72 horsepower (53.7 kW), diesel engine (biodiesel-ready, up to B20), SmartCool™ System with auto-reversing cooling fan, onboard InfoCenter™ diagnostics, and much more.


Model Year
Groundsmaster® 5900 (31698)
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6,710 lbs. (3,043 kg)
Mowing Width
16 ft. (3.2 m)
Fuel Tank Capacity
35 gal. (132.5 l)


Engine Make
Fuel Type
72 hp (54 kW)


Travel Speed
Mowing: 0 - 10.8 mph (0 - 17.4 km/h)
Transport: 0 - 20 mph (0 - 32.2 km/h)

Standard Features

SmartCool™ System With Auto-Reversing Cooling Fan
 Variable speed, temperature actuated reversing fan. Blows chaff off intake screen to help reduce overheating. Big time saver which reduces that amount of times an operator has to stop and exit the unit to clean the back hood.  
Operator Comfort
 The operator area of the Groundsmaster® 5900 was designed to make work more comfortable with amenities like a large operator platform, multi-size beverage holder, 12V power jack on control arm, personal storage box, storage slots for radio and phone, deluxe seat, portable radio holder, tilt steering, and air ride seat. Operators will also be pleased with the additional storage area behind the seat that's large enough for a water cooler, trash bucket, and other items.  
 Biodiesel ready up to B-20.  
 The full-time, 4-wheel drive puts power where it's needed. The cutting decks automatically take weight off the cutting units for more flotation, and put it on the traction wheels when climbing hills. Individual wheel brakes and 4WD flow divider can be used to provide additional traction assistance.  
 With the all-new InfoCenter™, you get helpful maintenance reminders and instant notification of potential problems. It's like having a mechanic on board.  
 Mow closely around trees and other obstacles with zero trim. You can also turn 180° and leave no uncut grass.  
 To mow between objects or along narrower areas, operators may raise either left or right wing decks (142 in. (3.6 m) width of cut) as well as both decks (92 in. (2.3 m) width of cut). The cutting units can be set from 1-6 in. (2.5-15.2 cm) to handle a wide variety of conditions.  
Mowing Capacity
 The 5900 / 5910 Series is all about covering maximum ground. With the cutting decks down, you get a full 16 feet (4.9 m) cut capable of mowing more the 100 acres (40.5 hectares) per day.  
Wing Decks: Bi-directional Impact Absorption System
 If the operator misjudges distance, the unique, bi-directional impact absorption system helps prevent damage and costly repairs. A massive spring-loaded shock cushions the decks away from the object.  

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*Price, if shown, is Manufacturer's Suggested Retail Price (MSRP) and does not include government fees, taxes, dealer freight/preparation, dealer document preparation charges or any finance charges (if applicable). MSRP and/or final actual sales price will vary depending on options or accessories selected.