Kubota GL21
Power
20 hp
Production
1990-1992
Engine
Diesel, 3-cylinder
Transmission
Gear
Weight
2293 lbs [1040 kg]
Drive
4WD
From the same series:
Introduction
Kubota GL21 Compact Utility Tractor
The Kubota GL21 is a compact utility tractor produced between 1990 and 1992. Designed for versatility in agricultural and maintenance tasks, this model belongs to the GL series and is characterized by its balanced power-to-weight ratio and mechanical configuration.
Engine and Performance
The tractor is powered by a Kubota D1403 3-cylinder liquid-cooled diesel engine. With a displacement of 1.4 liters (85 cubic inches), it generates a rated output of 20.7 hp (15.4 kW) at 2600 RPM. The engine utilizes an electric starter with a 12V system, ensuring consistent starting reliability.
Transmission and Drivetrain
The GL21 features a four-wheel drive system for enhanced traction. Operators can choose between two transmission configurations: a 16-speed gear transmission with a creeper/field range and shuttle shift, or a 16-speed power shift transmission that provides eight gears across two ranges. Both options include 16 forward and 16 reverse gears.
Hydraulics and PTO
The tractor is equipped with a Category I rear hitch for implement attachment. The rear Power Take-Off (PTO) provides four distinct speeds—568, 803, 985, and 1304 RPM—allowing the operator to match implement requirements precisely.
Mechanical and Dimensions
Built for maneuverability, the GL21 has a wheelbase of 154 cm (61 inches) and a ground clearance of 33 cm (13.2 inches). It incorporates power steering and mechanical wet disc brakes to assist with control. The machine weighs 1040 kg (2293 lbs) and is fitted with standard agricultural tires (6-14 front and 9.5-32 rear).
Conclusion
The Kubota GL21 is a durable, compact tractor suited for small-to-medium agricultural operations. Its combination of a multi-speed PTO, various transmission options, and 4WD capability makes it a practical choice for tasks requiring both precision and consistent pulling power.
Production Information of Kubota, GL21
- Compact Utility tractor
| Manufacturer | Kubota |
|---|
Dimension and Tires Information of Kubota, GL21
| Front tread | 37.4 inches [94 cm] |
|---|---|
| Wheelbase | 61 inches [154 cm] |
| Weight | 2293 lbs [1040 kg] |
| Height | 56.7 inches [144 cm] |
| Length | 116.1 inches [294 cm] |
| Rear tread | 39.8/44.5 inches [101/113 cm] |
| Ground clearance | 13.2 inches [33 cm] |
| Width | 50.2 inches [127 cm] |
| Standard tires (ag) | Front: 6-14. Rear: 9.5-32 |
|---|
Engine Specifications of Kubota, GL21
- Kubota D1403
- Liquid-cooled
- Diesel
- 3-cylinder
| Power | 20.7 hp [15.4 kW] |
|---|---|
| Displacement | 85 ci [1.4 L] |
| Rated RPM | 2600 |
| Bore/Stroke | 3.1x3.6 inches [79 x 91 mm] |
| Starter volts | 12 |
| Starter | Electric |
Transmission Information of Kubota, GL21
Transmission variants 1
- Four gears (1-4) in low/high ranges plus a creeper/field range shift with shuttle.
| Type | Gear |
|---|---|
| Gears | 16 forward and reverse |
Transmission variants 2
- Eight power shift gears in two ranges with shuttle.
| Type | Power shift |
|---|---|
| Gears | 16 forward and reverse |
- 16-speed gear
- 16-speed power shift
Mechanical Specs of Kubota, GL21
- Four-wheel drive
- Open operator station.
- Power steering
- Mechanical wet disc brakes
Power Information of Kubota, GL21
| Rear PTO Type | 568/803/985/1304 (1.375) |
|---|
Three-Point Hitch of Kubota, GL21
| Rear Type | I |
|---|
Electrical System of Kubota, GL21
| Ground | Negative |
|---|---|
| Battery volts | 12 |
Where it sits
With 20 HP, the Kubota GL21 sits between GL19 (18 HP) and GL23 (22 HP) in Kubota's range. Its power puts it in the 7th percentile of 1990s models in our database (2097 machines).
Frequently asked questions
How much horsepower does the Kubota GL21 have?
The Kubota GL21 delivers 20 HP.
What years was the Kubota GL21 produced?
The Kubota GL21 was produced in 1990-1992.
What engine does the Kubota GL21 have?
The Kubota GL21 is powered by a Diesel, 3-cylinder engine.
What transmission does the Kubota GL21 use?
The Kubota GL21 uses a Gear transmission.
How much does the Kubota GL21 weigh?
The Kubota GL21 weighs 2293 lbs [1040 kg].
Is the Kubota GL21 4WD?
The Kubota GL21 is available in 4WD.