Introduction
Iseki ST28A Compact Utility Tractor
The Iseki ST28A is a compact utility tractor produced between 2005 and 2008, manufactured in Matsuyama, Japan, and distributed by AGCO. Designed for property maintenance and light agricultural applications, this machine combines a 28-horsepower diesel engine with versatile transmission configurations.
Engine and Performance
The tractor is powered by an Iseki 3-cylinder liquid-cooled diesel engine with a displacement of 1.5 liters (89.3 ci). It generates a gross power output of 28.4 hp (21.2 kW) at a rated speed of 2500 RPM. The engine features an electric starter and a 12-volt electrical system.
Transmission and Drivetrain
The ST28A offers two distinct transmission options: a hydrostatic transmission providing infinite forward and reverse speeds, or a gear-driven transmission with 9 forward and 3 reverse speeds. The vehicle is equipped with a four-wheel-drive system, power steering, and a mechanical rear differential lock for enhanced traction. Braking is handled by wet disc brakes.
Hydraulics and Hitch
The hydraulic system utilizes an open-center design with a pump flow capacity of 7.4 gpm (28.0 lpm). The rear hitch is a Category I type, capable of lifting up to 2425 lbs (1099 kg) at the link ends, or 1610 lbs (730 kg) at 24 inches behind the hitch point. The tractor includes an independent rear PTO (540 RPM) and an optional independent mid-PTO (2000 RPM).
Dimensions and Build
With a wheelbase of 65.5 inches (166 cm) and an overall width of 49.6 inches (125 cm), the ST28A is sized for maneuverability in confined spaces. The machine has a shipping weight of 2205 lbs (1000 kg) and stands 79 inches (200 cm) high, equipped with a two-post folding ROPS for operator protection.
Conclusion
The Iseki ST28A is a robust, mid-range compact utility tractor suitable for landscaping, groundskeeping, and small-scale farming tasks. Its combination of Japanese engineering, multiple transmission choices, and significant hydraulic lift capacity makes it a versatile tool for varied operational requirements.
Production Information of AGCO, ST28A
- Built in Matsuyama, Japan
- Compact Utility tractor
| Distributor | AGCO |
|---|---|
| Manufacturer | Iseki |
Dimension and Tires Information of AGCO, ST28A
| Wheelbase | 65.5 inches [166 cm] |
|---|---|
| Shipping weight | 2205 lbs [1000 kg] |
| Height | 79 inches [200 cm] |
| Length | 114.6 inches [291 cm] |
| Width | 49.6 inches [125 cm] |
Engine Specifications of AGCO, ST28A
- Iseki
- Liquid-cooled
- Diesel
- 3-cylinder
| Power (gross) | 28.4 hp [21.2 kW] |
|---|---|
| Displacement | 89.3 ci [1.5 L] |
| Rated RPM | 2500 |
| Bore/Stroke | 3.39x3.30 inches [86 x 84 mm] |
| Starter volts | 12 |
| Starter | Electric |
Transmission Information of AGCO, ST28A
Transmission variants 1
| Type | Hydrostatic |
|---|---|
| Gears | Infinite forward and reverse |
Transmission variants 2
| Transmission | Gear |
|---|---|
| Gears | 9 forward and 3 reverse |
- Hydrostatic
- 9-speed
Mechanical Specs of AGCO, ST28A
- Four-wheel drive
- Two-post folding ROPS.
- Wet disc brakes
- Power steering
| Differential lock | Mechanical rear |
|---|
Power Information of AGCO, ST28A
| Rear PTO | Transmission (gear) |
|---|---|
| Mid PTO Type | 2000 |
| Mid PTO(optional) | Independent |
| Mid PTO(optional) | Independent (hydrostatic) |
| Rear PTO Type | 540 (1.375) |
Hydraulics Specifications of AGCO, ST28A
| Type | Open center |
|---|---|
| Pump flow | 7.4 gpm [28.0 lpm] |
Three-Point Hitch of AGCO, ST28A
| Rear Type | I |
|---|---|
| Rear lift (at ends) | 2425 lbs [1099 kg] |
| Rear lift (at 24"/610mm) | 1610 lbs [730 kg] |
Electrical System of AGCO, ST28A
| Ground | Negative |
|---|---|
| Battery volts | 12 |
Where it sits
With 28 HP, the AGCO ST28A sits between ST24A (22 HP) and ST33A (33 HP) in AGCO's range. Its power puts it in the 14th percentile of 2000s models in our database (2822 machines).
Frequently asked questions
How much horsepower does the AGCO ST28A have?
The AGCO ST28A delivers 28 HP.
What years was the AGCO ST28A produced?
The AGCO ST28A was produced in 2005-2008.
What engine does the AGCO ST28A have?
The AGCO ST28A is powered by a Diesel, 3-cylinder engine.
What transmission does the AGCO ST28A use?
The AGCO ST28A uses a Hydrostatic transmission.
How much does the AGCO ST28A weigh?
The AGCO ST28A weighs 2205 lbs [1000 kg].
Is the AGCO ST28A 4WD?
The AGCO ST28A is available in 4WD.