Kubota ZD331 lawn tractor

Kubota ZD331

Power

31 hp

Production

2007-2017

Engine

Diesel, 3-cylinder

Transmission

Hydrostatic

Weight

1715 lbs (60-inch) [777 kg]

Drive

2WD

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Introduction

Kubota ZD331 Zero-Turn Mower

The Kubota ZD331 is a professional-grade zero-turn mower produced between 2007 and 2017. Designed primarily for large-scale turf maintenance, this machine combines high-output diesel power with a hydrostatic transmission system to facilitate precise maneuverability in expansive landscapes.

Engine and Performance

The ZD331 is powered by the Kubota D1305, a liquid-cooled, 3-cylinder diesel engine. With a displacement of 1262 cc and a rated speed of 3000 RPM, it produces a gross power output of 31 hp (23.1 kW). This engine configuration is engineered for sustained operation under heavy mowing loads.

Transmission and Drivetrain

The machine utilizes a hydrostatic transmission, providing the operator with infinite control over forward and reverse speeds without the need for traditional gear shifting. The drivetrain is a two-wheel drive system, supported by differential power steering which enhances the mower's agility when navigating around obstacles.

Hydraulics and PTO

The mower features an independent mid-mounted Power Take-Off (PTO) system. Engagement is managed via a hydraulic wet disc clutch, ensuring smooth power transfer to the mower deck. This system is designed to handle the demands of 60-inch or 72-inch cutting decks.

Mechanical and Safety Features

Stopping power is provided by wet disc brakes, which offer consistent performance in various operating conditions. For operator protection, the unit includes a two-post foldable Rollover Protective Structure (ROPS). The machine rides on turf-specific tires, with 15x6.0-6 front tires and 26x12.0-12 rear tires to minimize soil compaction.

Conclusion

With its robust diesel engine and high-capacity deck compatibility, the Kubota ZD331 is suited for professional landscaping applications, municipal maintenance, and large residential properties requiring a balance of power and precise steering control.

Production Information of Kubota, ZD331

  • Zero-turn mower
ManufacturerKubota
Manufacturer(optional)$17,178 (2015 72-inch )
Original price$16,167 (2015 60-inch )

Dimension and Tires Information of Kubota, ZD331

Wheelbase55.5 inches [140 cm]
Wheelbase(optional)61.2 inches (folded) [155 cm]
Height (ROPS)75.4 inches [191 cm]
Length91.9 inches [233 cm]
Front tread38.4 inches [97 cm]
Weight1715 lbs (60-inch) [777 kg]
Width57.5 inches [146 cm]
Rear tread45.3 inches [115 cm]
Lawn/turf front15x6.0-6
Lawn/turf rear26x12.0-12

Engine Specifications of Kubota, ZD331

  • Kubota D1305
  • Liquid-cooled
  • Diesel
  • 3-cylinder
Power (gross)31 hp [23.1 kW]
Displacement1262 cc [77 ci]
Rated RPM3000
Bore/Stroke3.1x3.5 inches [79 x 89 mm]
Starter volts12
StarterElectric

Transmission Information of Kubota, ZD331

Transmission variants 1

TypeHydrostatic
GearsInfinite forward and reverse

Mechanical Specs of Kubota, ZD331

  • Two-wheel drive
  • Two-post foldable ROPS.
  • Wet discs brakes
SteeringDifferential power

Power Information of Kubota, ZD331

Mid PTOIndependent
ClutchHydraulic wet disc

Electrical System of Kubota, ZD331

GroundNegative
Battery volts12
Battery CCA475
Charging amps14
Charging volts14

Where it sits

With 31 HP, the Kubota ZD331 sits just above ZD1511LF (30 HP) in Kubota's range. Its power puts it in the 99th percentile of 2000s models in our database (1174 machines).

Frequently asked questions

How much horsepower does the Kubota ZD331 have?

The Kubota ZD331 delivers 31 HP.

What years was the Kubota ZD331 produced?

The Kubota ZD331 was produced in 2007-2017.

What engine does the Kubota ZD331 have?

The Kubota ZD331 is powered by a Diesel, 3-cylinder engine.

What transmission does the Kubota ZD331 use?

The Kubota ZD331 uses a Hydrostatic transmission.

How much does the Kubota ZD331 weigh?

The Kubota ZD331 weighs 1715 lbs (60-inch) [777 kg].

Is the Kubota ZD331 4WD?

The Kubota ZD331 is available in 2WD.

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