Kubota ZD331

Kubota ZD331The Kubota ZD331 is a 2WD zero-turn mower from the Z300 series. This tractor was manufactured by Kubota from 2007 to 2017. The Kubota ZD331 is equipped with a 1.3 L three-cylinder diesel engine and hydrostatic transmission with infinite forward and reverse gears.

The Kubota ZD331 zero-turn mower used the Kubota D1305 engine. It is a 1.3 L, 1261 cm2, (77.0 cu·in) three-cylinder natural aspirated diesel engine with 78.0 mm (3.07 in) of the cylinder bore and 88.0 mm (3.46 in) of the piston stroke. This engine produced 31.4 PS (23.1 kW; 31.0 HP) of gross output power.

The Kubota ZD331 is equipped with differential power steering, wet disc type brakes, two-post foldable ROPS and 49.0 liters (12.9 US gal.; 10.8 Imp. gal) fuel tank.

Following attachments are available for the Kubota ZD331 zero-turn mower:

  • Mid-mount Kubota RCK60P: 60 in (1,520 mm) mower deck with 3-blades
  • Mid-mount Kubota RCK72P: 72 in (1,820 mm) mower deck with 3-blades

Kubota ZD331 Specifications

General Specifications
ModelKubota ZD331
Length2,220 mm (87.4 in)
Width1,460 mm (57.5 in)
Height1,915 mm (75.4 in)
Wheel base1,410 mm (55.5 in)
Weight With 60 in deck: 820 kg (1,810 lbs)
With 60 in deck: 845 kg (1,863 lbs)
Fuel tank capacity49.0 liters (12.9 US gal.; 10.8 Imp. gal)
Battery12V, CCA: 450A
Cabin typeTwo-post foldable ROPS
Engine modelKubota D1305
Engine typeFour-stroke, liquid-cooled, inline
Fuel typeDiesel
Displacement1.3 L, 1,261 cm2, (77.0 cu·in)
Bore and stroke78.0 mm X 88.0 mm (3.07 in X 3.46 in)
Horsepower31.4 PS (23.1 kW; 31.0 HP)
Oil capacity:5.7 L (6 US. qt, 5 Imp. qt.)
Coolant capacity:3.5 L (3.7 US. qt, 3.1 Imp. qt.)
Transmission and chassis
Chassis4×2 2WD
Steering typeDifferential power
BrakesWet disc type
Transmission modelHST
Transmission typeHydrostatic
GearsInfinite forward and reverse
Speed Forward: 17.0 kmh (10.6 mph) Reverse: 8.5 (5.3 mph)
Transmission oil capacity12.1 L (3.2 US. gal, 2.7 Imp. gal.)
Front tiresAg: 15×6.0-6
Rear tiresAg: 26×12.0-12
PTO (Power take-off shaft)
Middle PTO typeIndependent with wet multi disks clutch
Middle PTO spped2,538 rpm
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