Kubota ST-30 tractor

Kubota ST-30

Power

28 hp

Production

1997-2001

Engine

Diesel, 4-cylinder

Transmission

Hydrostatic

Weight

2475 lbs [1122 kg]

Drive

4WD

From the same series:

ST-25

Introduction

Kubota ST-30 Compact Utility Tractor

The Kubota ST-30 is a compact utility tractor produced between 1997 and 2001. Designed for versatility in agricultural, landscaping, and property maintenance applications, this model belongs to the ST series, providing a balance of maneuverability and operational power.

Engine and Performance

The tractor is powered by the Kubota V1505 diesel engine, a 1.5-liter, 4-cylinder liquid-cooled unit. It produces 28.7 horsepower (21.4 kW) at a rated speed of 2600 RPM. This engine configuration ensures consistent torque for light-to-medium duty tasks.

Transmission and Drivetrain

Equipped with a hydrostatic transmission, the ST-30 offers infinite forward and reverse speeds across three distinct ranges. This configuration allows for precise speed control without manual gear shifting, which is advantageous for loader work or precision mowing. The tractor utilizes a four-wheel-drive system to maximize traction, supported by wet disc brakes for reliable stopping performance.

Hydraulics and Implements

The hydraulic system features a pump flow of 5.6 gpm (21.2 lpm). The rear hitch is a Category I three-point linkage equipped with position control, capable of lifting up to 1830 lbs (830 kg) at 24 inches behind the lift points. Power take-off (PTO) capabilities include an independent rear PTO with 540/800 RPM settings and a mid-mount PTO with 1720/2490 RPM, allowing the unit to drive a variety of implements.

Dimensions and Operator Environment

With a wheelbase of 63 inches (160 cm) and an overall width of 47.2 inches (119 cm), the ST-30 is engineered for operation in restricted spaces. The standard configuration includes a two-post Roll-Over Protective Structure (ROPS), with an optional factory cab available for increased operator protection and comfort. The ROPS-equipped unit weighs approximately 1962 lbs (889 kg).

Conclusion

The Kubota ST-30 is a robust compact utility tractor suitable for small-scale farming and professional landscaping. Its combination of a hydrostatic transmission, independent PTO options, and a Category I hitch makes it a versatile platform for those requiring a reliable machine for frequent implement changes and maneuverable operations.

Kubota ST-30 Manuals & Documentation

Download the manuals and documentation available for the Kubota ST-30: repair and workshop manuals, operator's handbooks, spare-parts catalogs and technical leaflets — free PDF files.

Archive documentation provided for reference, hosted by Tractor-Info.

Production Information of Kubota, ST-30

  • Compact Utility tractor
ManufacturerKubota

Dimension and Tires Information of Kubota, ST-30

Cab Shipping weight2475 lbs [1122 kg]
Wheelbase63 inches [160 cm]
Height (cab)84.5 inches [214 cm]
Height (ROPS)90.5 inches [229 cm]
Length107.1 inches [272 cm]
Ground clearance9.3 inches [23 cm]
ROPS Shipping weight1962 lbs [889 kg]
Width47.2 inches [119 cm]
Rear tread37.4 to 42.1 inches [94 to 106 cm]
Front tread40.2 inches [102 cm]

Minimum width with R1 tires.

Standard tires (ag)Front: 6.00-12. Rear: 9.5-22
Lawn/turf front24x8.50-14
Lawn/turf rear13.6-16

Engine Specifications of Kubota, ST-30

  • Kubota V1505
  • Liquid-cooled
  • Diesel
  • 4-cylinder
Power28.7 hp [21.4 kW]
Displacement91.4 ci [1.5 L]
Rated RPM2600
Bore/Stroke3.07x3.09 inches [78 x 78 mm]
Starter volts12
StarterElectric

Transmission Information of Kubota, ST-30

Transmission variants 1

TypeHydrostatic
GearsInfinite forward and reverse (3-range)

Mechanical Specs of Kubota, ST-30

  • Four-wheel drive
  • Wet disc brakes
  • Two-post ROPS. Cab optional.

Power Information of Kubota, ST-30

Rear PTOIndependent
Rear PTO Type540/800
Mid PTO Type1720/2490

Hydraulics Specifications of Kubota, ST-30

Pump flow5.6 gpm [21.2 lpm]

Three-Point Hitch of Kubota, ST-30

Rear TypeI
ControlPosition control
Rear lift (at 24"/610mm)1830 lbs [830 kg]

Electrical System of Kubota, ST-30

GroundNegative
Charging systemAlternator
Battery volts12

Where it sits

With 28 HP, the Kubota ST-30 sits between ST-25 (25 HP) and STA-35 (35 HP) in Kubota's range. Its power puts it in the 17th percentile of 1990s models in our database (2097 machines).

Frequently asked questions

How much horsepower does the Kubota ST-30 have?

The Kubota ST-30 delivers 28 HP.

What years was the Kubota ST-30 produced?

The Kubota ST-30 was produced in 1997-2001.

What engine does the Kubota ST-30 have?

The Kubota ST-30 is powered by a Diesel, 4-cylinder engine.

What transmission does the Kubota ST-30 use?

The Kubota ST-30 uses a Hydrostatic transmission.

How much does the Kubota ST-30 weigh?

The Kubota ST-30 weighs 2475 lbs [1122 kg].

Is the Kubota ST-30 4WD?

The Kubota ST-30 is available in 4WD.

Compare the Kubota ST-30 with another model