Row Crop tractorsSpec sheet
Satoh ST4000
The Satoh ST4000 is a powerful tractor built for serious farm work. It has a strong Mitsubishi 4DQ5 engine with 4 cylinders and 39.5 horsepower. This diesel engine is liquid-cooled, which helps it run smoothly even during long workdays. The tractor has a gear transmission with 9 forward gears and 3 reverse gears, giving the driver lots of options for different tasks. This tractor is big and sturdy, measuring 131.5 inches long and 60.6 inches wide. It weighs 3,351 pounds, making it stable for heavy jobs. The ST4000 has agricultural tires on both front and back, perfect for farm use. It also has a Category 3 hitch at the rear, which can handle large implements. The tractor starts easily with an electric starter, and it has adjustable front and rear treads to fit different row spacings.
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Key specifications
- Category
- Row Crop
- Engine power
- 40hp
- Operating weight
- 3,351 lb
- Transmission
- Gear
Category comparison
ST4000 compared with its category
vs. Row Crop medianDistribution
Engine Power (hp)
All recorded Row Crop tractors
39.5 hp · 4th
This model
12
Median 138 hp
283
This modelRow Crop tractorsMediann = 1,206
The ST4000 ranks at the 4th percentile for engine power among recorded row crop tractors.
Overview
About the Satoh ST4000
The Satoh ST4000 is a powerful tractor built for serious farm work. It has a strong Mitsubishi 4DQ5 engine with 4 cylinders and 39.5 horsepower. This diesel engine is liquid-cooled, which helps it run smoothly even during long workdays. The tractor has a gear transmission with 9 forward gears and 3 reverse gears, giving the driver lots of options for different tasks. This tractor is big and sturdy, measuring 131.5 inches long and 60.6 inches wide. It weighs 3,351 pounds, making it stable for heavy jobs. The ST4000 has agricultural tires on both front and back, perfect for farm use. It also has a Category 3 hitch at the rear, which can handle large implements. The tractor starts easily with an electric starter, and it has adjustable front and rear treads to fit different row spacings.
Full specifications
Recorded specifications
General
| Manufacturer | Satoh |
|---|---|
| Model | ST4000 |
| Category | Row Crop tractor |
| Operating weight | 3,351lb(1,520 kg) |
Engine
| Make | Mitsubishi |
|---|---|
| Model | 4DQ5 |
| Power | 39.5hp(29.46 kW) |
| Cylinders | 4 |
| Displacement | 127.2ci(2.08 L) |
| Bore | 3.31in(84.07 mm) |
| Stroke | 3.7in(93.98 mm) |
Transmission
| Type | Gear |
|---|---|
| Forward gears | 9 |
| Reverse gears | 3 |
Dimensions
| Length | 131.5in(3,340 mm) |
|---|---|
| Width | 60.6in(1,539 mm) |
| Operating weight | 3,351lb(1,520 kg) |
Capacities
| Cooling system | 2.13gal(8.06 L) |
|---|
Closest alternatives
ST4000 compared with the nearest models by horsepower
Among row crop tractors, the Allis Chalmers D15 Series I and the Fendt Farmer 102S are closest to the Satoh ST4000 in rated horsepower. The Allis Chalmers D15 Series I makes 0.5 hp more and weighs 640 lb more, so it carries more weight per horsepower, which helps traction in draft work. The Fendt Farmer 102S is rated 0.5 hp higher and weighs 1,700 lb more, at 126 lb per horsepower against 85 lb. Of the 3 models, the ST4000 has the lowest weight per horsepower at 85 lb per hp.
| Spec | Satoh ST4000 | Allis Chalmers D15 Series I | Fendt Farmer 102S |
|---|---|---|---|
| Engine power | 39.5 hp29.5 kW | 40 hp29.8 kW | 40 hp29.8 kW |
| Operating weight | 3,351 lb1,520 kg | 3,990 lb1,810 kg | 5,049 lb2,290 kg |
| Weight per hp | 85 lb/hp52 kg/kW | 100 lb/hp61 kg/kW | 126 lb/hp77 kg/kW |
| Displacement | 127.2 ci2.08 L | 149 ci2.44 L | 155.6 ci2.55 L |
| Cylinders | 4 | 4 | 3 |
| Transmission | Gear | Partial Power Shift | Synchronized |
| Drive | - | 2WD | 2WD |
Calculators
Calculators for the ST4000
PTO power
About 33 to 36 PTO hp
Estimated from the 39.5 hp engine rating. The calculator also estimates drawbar power by surface.
Implement sizing
Implements a 39.5 hp tractor can run
Maximum size is about a 4.5 ft rotary cutter or a 4 ft tiller. The calculator also sizes discs, plows and balers.
Ballast
99 lb per PTO hp as listed
Heavy draft work calls for 120 to 135 lb/hp. The calculator gives the ballast to add.
Units
39.5 hp is 29.5 kW
The converter gives kW and metric PS values, as used on European spec sheets.
Category medians
ST4000 vs. Row Crop median
Satoh ST4000 compared with other Row Crop tractors
| Spec | This model | Row Crop median | Difference | Percentile |
|---|---|---|---|---|
| Engine Power | 39.5 hp | 138 hp | -71% | 4th |
| Engine Displacement | 127 ci | 391 ci | -67% | 3rd |
| Cylinders | 4 | 6 | -33% | 17th |
| Forward Gears | 9 | 16 | -44% | 20th |
| Operating Weight | 3,351 lb | 12,307 lb | -73% | 3rd |
| Length | 132 in | 180 in | -27% | 6th |
| Width | 60.6 in | 91.2 in | -34% | 2nd |
Medians and percentiles are calculated from the row crop tractors in the database that have a recorded value for each specification (sample size 806–1,417 models).
Same manufacturer
Other Satoh models
Other manufacturers
Models with similar horsepower
FAQ
Frequently asked questions
How powerful is the Satoh ST4000?
The Satoh ST4000 has an engine power output of 39.5 hp. It is powered by a 4-cylinder engine displacing 127.2 ci.
What hitch category is the Satoh ST4000?
The Satoh ST4000 uses a Category Category 3 hitch.
What is the working weight of the Satoh ST4000?
The operating weight of the Satoh ST4000 is approximately 3,351 lb.
What type of transmission does the Satoh ST4000 have?
The Satoh ST4000 uses a Gear transmission offering 9 forward gears.
What routine service does the Satoh ST4000 need?
Regular maintenance for the Satoh ST4000 includes checking and changing engine oil, hydraulic fluid, and filters, plus routine inspections as recommended in the owner's manual. Always follow the manufacturer's maintenance schedule for specific intervals and procedures.