Kubota KB21X tractor

Kubota KB21X

Power

20 hp

Production

2009-2014

Engine

Diesel, 3-cylinder

Drive

4WD

From the same series:

KB19X
KB23X

Introduction

Kubota KB21X Sub-Compact Utility Tractor

The Kubota KB21X is a sub-compact utility tractor produced between 2009 and 2014. Designed for versatility in landscaping, property maintenance, and light agricultural tasks, it features a robust four-wheel-drive platform and compact dimensions for maneuverability in confined spaces.

Engine and Performance

The tractor is powered by the Kubota D1105, a 1.1-liter, 3-cylinder liquid-cooled diesel engine. It delivers approximately 20.7 horsepower at a rated engine speed of 2600 RPM. The engine uses a standard 12-volt electric starter system.

Transmission and Drivetrain

The KB21X offers two transmission configurations. The base model features a 9-speed manual gearbox with a dry disc clutch and shuttle shift. An optional 'Glideshift' transmission provides a sequential, hydraulically-shifted system with 36 forward and 24 reverse gears, requiring clutch operation only for range selection.

Hydraulics and PTO

The tractor is equipped with a rear power take-off (PTO) system rated at 540 RPM. The rear hitch is designed to accommodate various implements appropriate for a sub-compact utility platform.

Chassis and Operator Environment

Built with a four-wheel-drive system, the tractor includes power steering and mechanical wet disc brakes for operator control. The standard configuration utilizes a two-post Roll-Over Protective Structure (ROPS). An optional climate-controlled cab is available to enhance operator comfort in varying weather conditions.

Conclusion

With its compact footprint, 13.8 inches of ground clearance, and flexible transmission options, the Kubota KB21X is suited for operators requiring a reliable machine for property management and light-duty agricultural operations.

Production Information of Kubota, KB21X

  • Sub-Compact Utility tractor
ManufacturerKubota

Dimension and Tires Information of Kubota, KB21X

ROPS Rear tread35 inches [88 cm]
ROPS Wheelbase53.2 inches [135 cm]
ROPS Width44.5 inches [113 cm]
Cab Length97.6 inches [247 cm]
Cab Wheelbase53.7 inches [136 cm]
Height (cab)77.2 inches [196 cm]
Cab Width47.6 inches [120 cm]
ROPS Length92.3 inches [234 cm]
Cab Rear tread38.2 inches [97 cm]
Front tread33.5 inches [85 cm]
Ground clearance13.8 inches [35 cm]
Height (ROPS)74.8 inches [189 cm]
Standard tires (ag)Front: 6.00-12. Rear: 9.5-20

Engine Specifications of Kubota, KB21X

  • Kubota D1105
  • Liquid-cooled
  • Diesel
  • 3-cylinder
Power20.7 hp [15.4 kW]
Displacement68.5 ci [1.1 L]
Rated RPM2600
Bore/Stroke3.07x3.09 inches [78 x 78 mm]
Starter volts12
StarterElectric

Transmission Information of Kubota, KB21X

Transmission variants 1

  • Three gears (1-3) in three ranges with shuttle shift.
Gears9 forward and reverse
ClutchDry disc

Transmission variants 2

  • Sequential hydraulically-shifted transmission. Twelve forward gears with three ranges. Tractor must be stopped, and clutch used, to shift ranges.
TransmissionGlideshift
TypePower shift
Gears36 forward and 24 reverse
  • 9-speed
  • 36-speed power shift

Mechanical Specs of Kubota, KB21X

  • Four-wheel drive
  • Two-post ROPS. Cab optional with air-conditioning.
  • Power steering
  • Mechanical wet disc brakes

Power Information of Kubota, KB21X

Rear PTO Type540 (1.375)
Rear PTO Type(optional)-662@2600
Rear PTO Type(optional)1182@2600
Engine RPM530@2600
Engine RPM(optional)799@2600

Three-Point Hitch of Kubota, KB21X

Rear Type0

Electrical System of Kubota, KB21X

GroundNegative
Battery volts12

Where it sits

With 20 HP, the Kubota KB21X sits between KB19X (18 HP) and KB23X (22 HP) in Kubota's range. Its power puts it in the 5th percentile of 2000s models in our database (2822 machines).

Frequently asked questions

How much horsepower does the Kubota KB21X have?

The Kubota KB21X delivers 20 HP.

What years was the Kubota KB21X produced?

The Kubota KB21X was produced in 2009-2014.

What engine does the Kubota KB21X have?

The Kubota KB21X is powered by a Diesel, 3-cylinder engine.

Is the Kubota KB21X 4WD?

The Kubota KB21X is available in 4WD.

Compare the Kubota KB21X with another model