Introduction
Satoh ST-4000 Utility Tractor
The Satoh ST-4000 is a utility tractor produced between 1977 and 1980. Designed as a reliable, two-wheel drive workhorse, this model served a variety of agricultural purposes during its production run.
Engine and Performance
The tractor is powered by a Mitsubishi 4DQ5 liquid-cooled, 4-cylinder diesel engine. With a displacement of 2.1 liters (127.2 cubic inches), it provides a power output of 39.5 horsepower at a rated engine speed of 2400 RPM. The engine delivers a maximum torque of 92 lb-ft at 1600 RPM, ensuring sufficient pulling capability for standard utility tasks.
Transmission and Drivetrain
The ST-4000 utilizes a gear-type transmission offering 9 forward and 3 reverse speeds, providing the operator with a range of options to match specific field requirements. The machine is configured with a two-wheel drive system, suitable for general farming conditions.
Hydraulics and PTO
Equipped with a rear PTO operating at 540 RPM, the tractor supports various implements. The rear hitch is a JIS1 category type, featuring both position and draft control, allowing for precise adjustments when using soil-engaging tools.
Dimensions and Handling
The tractor has a wheelbase of 74.2 inches (188 cm) and an overall length of 131.5 inches (334 cm). With a curb weight of 3351 lbs (1520 kg), the ST-4000 is balanced for stability. It is fitted with agricultural tires, using 6.00-16 dimensions at the front and 12.4/11-28 at the rear to maintain traction.
Conclusion
The Satoh ST-4000 represents a straightforward, mechanical solution for agricultural operations. Its combination of a 4-cylinder diesel engine and a multi-gear transmission makes it a durable choice for farmers requiring a dependable utility tractor for light to medium-duty field work.
Production Information of Satoh, ST-4000
- Utility tractor
| Manufacturer | Satoh |
|---|
Dimension and Tires Information of Satoh, ST-4000
| Wheelbase | 74.2 inches [188 cm] |
|---|---|
| Front tread | 47.4 to 66.5 inches [120 to 168 cm] |
| Weight | 3351 lbs [1520 kg] |
| Length | 131.5 inches [334 cm] |
| Rear tread | 48 to 71.5 inches [121 to 181 cm] |
| Width | 60.6 inches [153 cm] |
| Ag front | 6.00-16 |
|---|---|
| Ag rear | 12.4/11-28 |
Engine Specifications of Satoh, ST-4000
- Mitsubishi 4DQ5
- Liquid-cooled
- 4-cylinder
- Diesel
| Rated RPM | 2400 |
|---|---|
| Starter | Electric |
| Displacement | 127.2 ci [2.1 L] |
| Bore/Stroke | 3.31x3.70 inches [84 x 94 mm] |
| Power | 39.5 hp [29.5 kW] |
| Torque RPM | 1600 |
| Torque | 92 lb-ft [124.8 Nm] |
| Coolant capacity | 8.5 qts [8.0 L] |
| Oil capacity | 5.3 qts [5.0 L] |
| Starter volts | 12 |
Transmission Information of Satoh, ST-4000
Transmission variants 1
| Type | Gear |
|---|---|
| Gears | 9 forward and 3 reverse |
Mechanical Specs of Satoh, ST-4000
- Two-wheel drive
- Open operator station.
Power Information of Satoh, ST-4000
| Rear PTO Type | 540 (1.375) |
|---|---|
| Rear PTO Type(optional) | 1466@2400 |
| Rear PTO Type(optional) | 1168@2400 |
| Engine RPM | 625@2400 |
| Engine RPM(optional) | 837@2400 |
Three-Point Hitch of Satoh, ST-4000
| Rear Type | JIS1 |
|---|---|
| Control | Position and draft control |
Electrical System of Satoh, ST-4000
| Ground | Negative |
|---|---|
| Battery volts | 12 |
Where it sits
Its power puts it in the 23th percentile of 1970s models in our database (1259 machines).
Frequently asked questions
How much horsepower does the Satoh ST-4000 have?
The Satoh ST-4000 delivers 39 HP.
What years was the Satoh ST-4000 produced?
The Satoh ST-4000 was produced in 1977-1980.
What engine does the Satoh ST-4000 have?
The Satoh ST-4000 is powered by a Diesel, 4-cylinder engine.
What transmission does the Satoh ST-4000 use?
The Satoh ST-4000 uses a Gear transmission.
How much does the Satoh ST-4000 weigh?
The Satoh ST-4000 weighs 3351 lbs [1520 kg].
Is the Satoh ST-4000 4WD?
The Satoh ST-4000 is available in 2WD.