Kubota ZD321 lawn tractor

Kubota ZD321

Power

26 hp

Production

2007-2011

Engine

Diesel, 3-cylinder

Transmission

Hydrostatic

Weight

1757 lbs [796 kg]

Drive

2WD

Introduction

Kubota ZD321 Zero-Turn Mower

The Kubota ZD321 is a professional-grade zero-turn mower produced between 2007 and 2011. Designed for high-efficiency landscaping, this machine combines a specialized diesel powertrain with a high-capacity mowing deck suited for large-scale turf maintenance.

Engine and Powertrain

The ZD321 is powered by the Kubota D1005 diesel engine, a liquid-cooled, 3-cylinder unit with a displacement of 1001 cc (61.1 ci). It produces 26 horsepower (19.4 kW) at a rated speed of 3200 RPM. The engine is paired with a hydrostatic transmission that provides infinite forward and reverse speed control, facilitating precise maneuvering required for zero-turn operations.

Mechanical and Maneuverability

This two-wheel-drive mower utilizes differential power steering to achieve its zero-turn capability. Braking is managed through wet disc brakes, which are integrated into the transmission system for improved durability and consistent performance. The machine is equipped with an independent mid-mounted PTO, allowing for the efficient operation of its 60-inch mower deck.

Dimensions and Operator Safety

The chassis features a 55.5-inch (140 cm) wheelbase, contributing to the machine's stability during operation. It has an overall length of 87.4 inches (221 cm) and a width of 57.5 inches (146 cm). For operator protection, the unit is equipped with a two-post foldable Roll-Over Protective Structure (ROPS), which brings the total height to 75.4 inches (191 cm) when deployed. The total weight of the mower is 1757 lbs (796 kg).

Conclusion

The Kubota ZD321 is engineered for demanding landscaping environments where maneuverability and consistent cutting performance are required. Its combination of a liquid-cooled diesel engine and hydrostatic drive system makes it a durable solution for professionals maintaining extensive grass areas.

Production Information of Kubota, ZD321

  • Zero-turn mower
ManufacturerKubota

Dimension and Tires Information of Kubota, ZD321

Front tread38.4 inches [97 cm]
Wheelbase55.5 inches [140 cm]
Wheelbase(optional)61.2 inches (folded) [155 cm]
Height (ROPS)75.4 inches [191 cm]
Length87.4 inches [221 cm]
Rear tread45.3 inches [115 cm]
Weight1757 lbs [796 kg]
Width57.5 inches [146 cm]
Lawn/turf front15x6.0-6
Lawn/turf rear26x12.0-12

Engine Specifications of Kubota, ZD321

  • Kubota D1005
  • Liquid-cooled
  • Diesel
  • 3-cylinder
Power (gross)26 hp [19.4 kW]
Displacement1001 cc [61.1 ci]
Rated RPM3200
Bore/Stroke2.992x2.898 inches [76 x 74 mm]
Starter volts12
StarterElectric

Transmission Information of Kubota, ZD321

Transmission variants 1

TypeHydrostatic
GearsInfinite forward and reverse

Mechanical Specs of Kubota, ZD321

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

Power Information of Kubota, ZD321

Mid PTOIndependent

Electrical System of Kubota, ZD321

GroundNegative
Battery volts12
Battery CCA450
Charging amps14
Charging volts14

Where it sits

With 26 HP, the Kubota ZD321 sits between ZD25 (25 HP) and ZG127E (27 HP) in Kubota's range. Its power puts it in the 93th percentile of 2000s models in our database (1174 machines).

Frequently asked questions

How much horsepower does the Kubota ZD321 have?

The Kubota ZD321 delivers 26 HP.

What years was the Kubota ZD321 produced?

The Kubota ZD321 was produced in 2007-2011.

What engine does the Kubota ZD321 have?

The Kubota ZD321 is powered by a Diesel, 3-cylinder engine.

What transmission does the Kubota ZD321 use?

The Kubota ZD321 uses a Hydrostatic transmission.

How much does the Kubota ZD321 weigh?

The Kubota ZD321 weighs 1757 lbs [796 kg].

Is the Kubota ZD321 4WD?

The Kubota ZD321 is available in 2WD.

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