Shibaura SX21 tractor

Shibaura SX21

Power

21 hp

Production

unknown

Engine

Diesel, 3-cylinder

Transmission

Hydrostatic

Weight

1530 lbs [694 kg]

Drive

4WD

From the same series:

SX24

Introduction

Shibaura SX21 Compact Utility Tractor

The Shibaura SX21 is a compact utility tractor manufactured in Matsumoto, Japan. Designed for versatility in property maintenance and light agricultural operations, this model integrates a 21-horsepower diesel engine within a compact frame suitable for varied terrain.

Engine and Performance

The tractor is powered by the Shibaura S753, a 3-cylinder, liquid-cooled diesel engine with a displacement of 58.2 cubic inches (1.0 L). It delivers 21 horsepower (15.7 kW) at a rated speed of 3000 RPM. The engine features a 24:1 compression ratio and utilizes a 12-volt starter system.

Transmission and Drivetrain

The SX21 is equipped with a hydrostatic transmission, providing infinite forward and reverse gears for smooth speed control without manual shifting. It features a four-wheel-drive system to enhance traction, supported by wet disc brakes for reliable stopping power and power steering for maneuverability.

Hydraulics and PTO

The hydraulic system utilizes an open-center design with a pump flow of 3.75 gpm (14.2 lpm) and a system pressure of 1885 psi (130.0 bar). The tractor is equipped with a live rear PTO (540 RPM) and a standard mid-PTO (2200 RPM), allowing for the simultaneous or independent operation of rear and mid-mounted implements.

Dimensions and Capacity

With a wheelbase of 55.1 inches (139 cm) and a total width of 43.3 inches (109 cm), the machine is designed for compact spaces. It has a ground clearance of 9.1 inches (23 cm) and a base weight of 1530 lbs (694 kg). The Category I rear hitch provides a lift capacity of 701 lbs (317 kg) measured at 24 inches behind the lift point.

Conclusion

The Shibaura SX21 is a specialized compact utility tractor suited for operators requiring a maneuverable machine for landscaping, groundskeeping, and light-duty farming tasks. Its combination of hydrostatic drive and dual PTO configuration offers consistent performance for small-scale implement work.

Production Information of Shibaura, SX21

  • Compact Utility tractor
  • Built in Matsumoto, Japan
ManufacturerShibaura

Dimension and Tires Information of Shibaura, SX21

Rear tread35.8 inches [90 cm]
Wheelbase55.1 inches [139 cm]
Ground clearance9.1 inches [23 cm]
Weight1530 lbs [694 kg]
Length98 inches [248 cm]
Front tread35.8 inches [90 cm]
Width43.3 inches [109 cm]
Ag front4.00-9
Lawn/turf rear26x12.00-12
Ag rear7-14
Lawn/turf front18x8.50-8

Engine Specifications of Shibaura, SX21

  • Shibaura S753
  • Liquid-cooled
  • Diesel
  • 3-cylinder
Intake valve clearance0.008 inches [0.203 mm]
Coolant capacity3.7 qts [3.5 L]
Compression24:1
Exhaust valve clearance0.008 inches [0.203 mm]
Idle RPM1300-3200
Firing order1-2-3
Rated RPM3000
Displacement58.2 ci [1.0 L]
Power21 hp [15.7 kW]
Bore/Stroke2.953x2.835 inches [75 x 72 mm]
Oil capacity3.5 qts [3.3 L]
Starter power1.6 hp [1.2 kW]
Starter volts12

Transmission Information of Shibaura, SX21

Transmission variants 1

TypeHydrostatic
GearsInfinite forward and reverse
Oil capacity13.75 qts [13.0 L]

Mechanical Specs of Shibaura, SX21

  • Four-wheel drive
  • Wet disc brakes
SteeringPower

Power Information of Shibaura, SX21

Rear PTOLive
Mid PTO Type2200
Mid PTOStandard
Rear PTO Type540 (1.375)
Engine RPM2200@3020
Engine RPM540@2992

Hydraulics Specifications of Shibaura, SX21

TypeOpen center
Steering flow1.85 gpm [7.0 lpm]
Pump flow3.75 gpm [14.2 lpm]
Pressure1885 psi [130.0 bar]
Valves1

Three-Point Hitch of Shibaura, SX21

Rear TypeI
Rear lift (at 24"/610mm)701 lbs [317 kg]

Electrical System of Shibaura, SX21

GroundNegative
Battery volts12
Charging systemAlternator
Charging amps40

Where it sits

With 21 HP, the Shibaura SX21 sits just below SX24 (24 HP) in Shibaura's range.

Frequently asked questions

How much horsepower does the Shibaura SX21 have?

The Shibaura SX21 delivers 21 HP.

What years was the Shibaura SX21 produced?

The Shibaura SX21 was produced in unknown.

What engine does the Shibaura SX21 have?

The Shibaura SX21 is powered by a Diesel, 3-cylinder engine.

What transmission does the Shibaura SX21 use?

The Shibaura SX21 uses a Hydrostatic transmission.

How much does the Shibaura SX21 weigh?

The Shibaura SX21 weighs 1530 lbs [694 kg].

Is the Shibaura SX21 4WD?

The Shibaura SX21 is available in 4WD.

Compare the Shibaura SX21 with another model