AGCO ST25
Power
24 hp
Production
2001-2004
Engine
Diesel, 3-cylinder
Transmission
Gear
Weight
1588 lbs (hydro) [720 kg]
Drive
4WD
From the same series:
Introduction
Iseki ST25 Compact Utility Tractor
The Iseki ST25 is a compact utility tractor produced between 2001 and 2004, designed for agricultural and property maintenance applications. Manufactured in Matsuyama, Japan, and distributed by AGCO, this tractor is built for versatility and maneuverability in confined spaces.
Engine and Performance
The ST25 is powered by the liquid-cooled 3-cylinder Iseki E3112 diesel engine. With a displacement of 1.1 liters, it produces a gross power output of 24.3 hp (18.1 kW) and a net power output of 22.2 hp (16.6 kW). The engine features indirect injection and a compression ratio of 22.5:1, designed for consistent performance in various operating conditions.
Transmission and Drivetrain
The tractor offers two transmission configurations: a 6-speed mechanical gear transmission (6 forward, 2 reverse) and a 2-range hydrostatic transmission for infinite speed control. The gear model utilizes a 184mm mechanical dry disc clutch, while the hydrostatic version features an electro-hydraulic wet disc clutch. Standard mechanical four-wheel drive and a rear differential lock provide traction management.
Hydraulics and Hitch
The hydraulic system is an open-center type with a total flow capacity of 7.9 gpm (29.9 lpm). The rear Category I three-point hitch is controlled via a position control system and provides a maximum lift capacity of 1,210 lbs (548 kg) at the ends of the arms, with a lift capacity of 694 lbs (314 kg) measured at 24 inches behind the hitch point.
Dimensions and PTO
The ST25 features a wheelbase of 59.9 inches and a ground clearance of 11 inches, contributing to its stability. It is equipped with a rear independent PTO operating at 540 rpm, and the gear-driven model includes a mid-mounted PTO for additional implement versatility. The chassis supports various tire configurations, including agricultural, industrial, and turf options.
Conclusion
The Iseki ST25 is a robust, compact utility machine suited for landowners and small-scale agricultural operators who require a reliable platform for grounds maintenance and light field tasks. Its choice of transmission types and PTO options ensures compatibility with a broad range of implements.
Production Information of AGCO, ST25
- Built in Matsuyama, Japan
- Compact Utility tractor
| Distributor | AGCO |
|---|---|
| Manufacturer | Iseki |
Dimension and Tires Information of AGCO, ST25
- Flange rear axle
| Rear tread | 31.5 to 35.8 inches [80 to 90 cm] |
|---|---|
| Wheelbase | 59.9 inches [152 cm] |
| Height (ROPS) | 75.2 inches [191 cm] |
| Height (steering wheel) | 51.2 inches [130 cm] |
| Length | 105.5 inches [267 cm] |
| Ground clearance | 11 inches [27 cm] |
| Shipping weight | 1588 lbs (hydro) [720 kg] |
| Width | 41 inches [104 cm] |
| Front tread | 30.3/34.6 inches [76/87 cm] |
| Max weight | 2424 lbs [1099 kg] |
| Standard tires (ag) | Front: 5.00-12. Rear: 9.5-16 |
|---|---|
| Industrial rear | 12-16.5 |
| Lawn/turf front | 23x8.50-12 |
| Lawn/turf rear | 315x75D15 |
Engine Specifications of AGCO, ST25
- Iseki E3112
- Liquid-cooled inline
- Diesel
- 3-cylinder
| Torque RPM | 2000 |
|---|---|
| Torque | 49.2 lb-ft [66.7 Nm] |
| Coolant capacity | 7.5 qts [7.1 L] |
| Power (gross) | 24.3 hp [18.1 kW] |
| Starter | Electric |
| Air cleaner | Dry |
| Pre-heating | Glow plugs |
| Fuel system | Indirect injection |
| Displacement | 68.5 ci [1.1 L] |
| Power (net) | 22.2 hp [16.6 kW] |
| Bore/Stroke | 3.08x3.07 inches [78 x 78 mm] |
| Idle RPM | 950-3050 |
| Starter volts | 12 |
| Oil capacity | 2.9 qts [2.7 L] |
| Rated RPM | 2800 |
| Compression | 22.5:1 |
Transmission Information of AGCO, ST25
Transmission variants 1
- Three gears (1-3), plus reverse (R), in two ranges. Tractor must be stopped, and clutch used, to shift gears or range.
| Type | Gear |
|---|---|
| Oil capacity | 14.8 qts [14.0 L] |
| Gears | 6 forward and 2 reverse |
| Clutch | 184mm mechanical dry disc |
Transmission variants 2
| Manufacturer | Kayaba |
|---|---|
| Oil capacity | 14.8 qts [14.0 L] |
| Type | Hydrostatic |
| Gears | Infinite forward and reverse (2-range) |
- 6-speed gear
- Hydrostatic
Mechanical Specs of AGCO, ST25
- Four-wheel drive
- Dry shoe brakes
- Power steering
- Two-post ROPS.
| Final drives | Spur gear |
|---|---|
| Differential lock | Mechanical rear |
Power Information of AGCO, ST25
| Rear PTO | Transmission (gear) |
|---|---|
| Engine RPM | 540@2681 (hydro) |
| Rear PTO Type | 540 (1.375) |
| Rear PTO Type(optional) | Independent (hydro) |
| Rear PTO Type(optional) | Independent (hydro) |
| Rear PTO Type(optional) | 540@2732 (gear) |
| Clutch | Electro-hydraulic wet disc (hydro) |
| Engine RPM | 2000@2583 (hydro) |
| Mid PTO Type | SAE 15 1.0 |
| Mid PTO | Transmission (gear) |
Hydraulics Specifications of AGCO, ST25
| Steering press. | 1493 psi [102.9 bar] |
|---|---|
| Type | Open center |
| Total flow | 7.9 gpm [29.9 lpm] |
| Pump flow | 5.3 gpm [20.1 lpm] |
| Capacity | 3.7 gal [14.0 L] |
| Steering flow | 2.64 gpm [10.0 lpm] |
| Pressure | 1990 psi [137.2 bar] |
Three-Point Hitch of AGCO, ST25
| Rear Type | I |
|---|---|
| Rear Arms | Fixed link ends with turn-buckle stabilizer |
| Rear lift (at 24"/610mm) | 694 lbs [314 kg] |
| Control | Position control |
| Rear lift (at ends) | 1210 lbs [548 kg] |
Electrical System of AGCO, ST25
| Ground | Negative |
|---|---|
| Battery volts | 12 |
| Charging system | Alternator |
| Charging amps | 40 |
Where it sits
With 24 HP, the AGCO ST25 sits between ST24A (22 HP) and ST30x (28 HP) in AGCO's range. Its power puts it in the 9th percentile of 2000s models in our database (2822 machines).
Frequently asked questions
How much horsepower does the AGCO ST25 have?
The AGCO ST25 delivers 24 HP.
What years was the AGCO ST25 produced?
The AGCO ST25 was produced in 2001-2004.
What engine does the AGCO ST25 have?
The AGCO ST25 is powered by a Diesel, 3-cylinder engine.
What transmission does the AGCO ST25 use?
The AGCO ST25 uses a Gear transmission.
How much does the AGCO ST25 weigh?
The AGCO ST25 weighs 1588 lbs (hydro) [720 kg].
Is the AGCO ST25 4WD?
The AGCO ST25 is available in 4WD.