Introduction
Iseki ST45 Compact Utility Tractor
The Iseki ST45 is a compact utility tractor manufactured in Matsuyama, Japan, and distributed by AGCO between 2001 and 2004. Designed for versatility in agricultural and maintenance tasks, this model belongs to the ST series, which includes variants such as the ST40, ST47A, and ST55.
Engine and Powerplant
The tractor is powered by the Iseki E4CG, a 2.2-liter, 4-cylinder liquid-cooled diesel engine. It generates a gross power output of 44.2 hp (33.0 kW) and a net power of 42.4 hp (31.6 kW). The engine utilizes an indirect injection fuel system and features a dry air cleaner. Cold weather operation is facilitated by a glow plug pre-heating system and a 12-volt electric starter.
Transmission and Drivetrain
The ST45 offers three transmission configurations to suit different operational requirements: a 16-speed mechanical shuttle, a 16-speed power shuttle, or an infinite-range hydrostatic transmission. All models are equipped with four-wheel drive and a mechanical rear differential lock to enhance traction in challenging ground conditions. Braking is provided by a wet disc system.
Hydraulics and PTO
The hydraulic system is an open-center design providing a total flow of 12.6 gpm (47.7 lpm) at a pressure of 2275 psi (156.9 bar). The tractor is equipped with an independent rear PTO operating at 540 rpm. An optional mid-PTO, providing 2000 rpm, is available exclusively for models equipped with the hydrostatic transmission.
Hitch and Dimensions
The rear Category I three-point hitch features both position and draft control, with telescopic link ends to facilitate implement attachment. The lift capacity is rated at 2600 lbs (1179 kg) at 24 inches behind the lift point, with a maximum capacity of 3086 lbs (1399 kg) at the link ends. The machine has a wheelbase of 78.9 inches and a shipping weight of 4448 lbs.
Conclusion
The Iseki ST45 is a robust utility tractor suited for varied applications ranging from field work to property maintenance. Its combination of multiple transmission options, independent PTO, and reliable hydraulic capacity makes it a flexible choice for operators requiring a compact machine with professional-grade performance features.
Production Information of AGCO, ST45
- Built in Matsuyama, Japan
- Compact Utility tractor
| Distributor | AGCO |
|---|---|
| Manufacturer | Iseki |
Dimension and Tires Information of AGCO, ST45
| Front tread | 52.5 inches [133 cm] |
|---|---|
| Wheelbase | 78.9 inches [200 cm] |
| Shipping weight | 4448 lbs [2017 kg] |
| Height (ROPS) | 89 inches [226 cm] |
| Length | 137 inches [347 cm] |
| Rear tread | 52 to 60 inches [132 to 152 cm] |
| Max weight | 6000 lbs [2721 kg] |
| Width | 69.1 inches [175 cm] |
| Standard tires (ag) | Front: 9.5-16. Rear: 13.6-28 |
|---|---|
| Lawn/turf front | 212/80D-15 |
| Lawn/turf rear | 475/65D-20 |
Engine Specifications of AGCO, ST45
- Iseki E4CG
- Liquid-cooled inline
- Diesel
- 4-cylinder
| Torque RPM | 1500 |
|---|---|
| Torque | 139 lb-ft [188.5 Nm] |
| Coolant capacity | 10 qts [9.5 L] |
| Power (gross) | 44.2 hp [33.0 kW] |
| Starter | Electric |
| Air cleaner | Dry |
| Pre-heating | Glow plugs |
| Fuel system | Indirect injection |
| Displacement | 134.1 ci [2.2 L] |
| Power (net) | 42.4 hp [31.6 kW] |
| Bore/Stroke | 3.43x3.64 inches [87 x 92 mm] |
| Idle RPM | 975-2700 |
| Starter volts | 12 |
| Oil capacity | 8.4 qts [7.9 L] |
| Rated RPM | 2600 |
| Compression | 21.8:1 |
Transmission Information of AGCO, ST45
Transmission variants 1
| Type | Mechanical shuttle |
|---|---|
| Gears | 16 forward and reverse |
| Clutch | 260mm dry disc |
Transmission variants 2
| Type | Power shuttle |
|---|---|
| Gears | 16 forward and reverse |
| Clutch | Wet disc |
Transmission variants 3
| Type | Hydrostatic |
|---|---|
| Gears | Infinite forward and reverse (four-range) |
- 16-speed mechanical shuttle
- 16-speed power shuttle
- Hydrostatic
Mechanical Specs of AGCO, ST45
- Four-wheel drive
- Wet disc brakes
- Power steering
- Two-post fixed ROPS.
| Final drives | Spur gear |
|---|---|
| Differential lock | Mechanical rear |
Power Information of AGCO, ST45
| Rear PTO | Independent |
|---|---|
| Mid PTO | Optional |
| Engine RPM | 540@2391 |
| Clutch | Electro-hydraulic wet disc |
| Mid PTO Type | 2000 |
| Rear PTO Type | 540 (1.375) |
Mid PTO only available with hydrostatic transmission.
Hydraulics Specifications of AGCO, ST45
| Type | Open center |
|---|---|
| Steering flow | 5.2 gpm [19.7 lpm] |
| Total flow | 12.6 gpm [47.7 lpm] |
| Pressure | 2275 psi [156.9 bar] |
| Steering press. | 2485 psi [171.3 bar] |
| Pump flow | 7.4 gpm [28.0 lpm] |
Three-Point Hitch of AGCO, ST45
| Rear Type | I |
|---|---|
| Rear Arms | Telescopic link ends |
| Rear lift (at 24"/610mm) | 2600 lbs [1179 kg] |
| Control | Position and draft control |
| Rear lift (at ends) | 3086 lbs [1399 kg] |
Electrical System of AGCO, ST45
| Ground | Negative |
|---|---|
| Battery volts | 12 |
| Battery CCA | 622 |
| Charging system | Alternator |
| Charging amps | 40 |
Where it sits
With 44 HP, the AGCO ST45 sits between ST40 (40 HP) and ST47A (47 HP) in AGCO's range. Its power puts it in the 28th percentile of 2000s models in our database (2822 machines).
Frequently asked questions
How much horsepower does the AGCO ST45 have?
The AGCO ST45 delivers 44 HP.
What years was the AGCO ST45 produced?
The AGCO ST45 was produced in 2001-2004.
What engine does the AGCO ST45 have?
The AGCO ST45 is powered by a Diesel, 4-cylinder engine.
What transmission does the AGCO ST45 use?
The AGCO ST45 uses a Mechanical shuttle transmission.
How much does the AGCO ST45 weigh?
The AGCO ST45 weighs 4448 lbs [2017 kg].
Is the AGCO ST45 4WD?
The AGCO ST45 is available in 4WD.