Satoh S550
Power
17 hp
Production
1972-1983
Engine
Gasoline, 4-cylinder
Transmission
Gear
Weight
1429 lbs [648 kg]
Drive
2WD
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Introduction
Satoh S550 Compact Utility Tractor
The Satoh S550 is a compact utility tractor manufactured in Japan, produced between 1972 and 1983. It is designed for small-scale agricultural operations and utility maintenance, characterized by its mechanical simplicity and compact dimensions.
Engine and Performance
The tractor is powered by a Mazda 4-cylinder gasoline engine with a displacement of 60.25 cubic inches (1.0 L). It is liquid-cooled, utilizes a carburetor fuel system, and features a dry-type air cleaner. The engine delivers 17 horsepower (12.7 kW) at a rated speed of 2300 RPM, providing steady power for light field work.
Transmission and Drivetrain
The S550 utilizes a manual transmission system offering 6 forward and 2 reverse gears, coupled with a dry disc clutch. It is configured as a two-wheel drive machine, utilizing spur gear final drives. Steering is performed manually, and the vehicle is equipped with mechanical drum brakes for stopping.
Hydraulics and PTO
The unit is equipped with a Category I rear hitch capable of a lift capacity of 1102 lbs (499 kg). The rear power take-off (PTO) operates at a standard speed of 540 RPM, which is achieved when the engine is running at 2120 RPM.
Dimensions and Electrical System
With a wheelbase of 58.7 inches (149 cm) and a total weight of 1429 lbs (648 kg), the tractor maintains a compact footprint with a ground clearance of 13 inches (33 cm). The electrical system consists of a 12-volt battery and an alternator providing 35 charging amps to support the electric starter.
Conclusion
The Satoh S550 is a dependable, entry-level utility tractor suited for small farms, gardening, or property maintenance. Its straightforward mechanical design and compact size make it an accessible machine for operators requiring a basic, maneuverable platform for light-duty implements.
Production Information of Satoh, S550
- Compact Utility tractor
- Built in Japan
| Manufacturer | Satoh |
|---|
Dimension and Tires Information of Satoh, S550
| Front tread | 37.8 to 40 inches [96 to 101 cm] |
|---|---|
| Wheelbase | 58.7 inches [149 cm] |
| Weight | 1429 lbs [648 kg] |
| Height (steering wheel) | 51.6 inches [131 cm] |
| Length | 103.4 inches [262 cm] |
| Rear tread | 37.6 to 41.3 inches [95 to 104 cm] |
| Ground clearance | 13 inches [33 cm] |
| Width | 45 inches [114 cm] |
| Ag front | 4.00x12 |
|---|---|
| Lawn/turf rear | 13.6-16 |
| Ag rear | 8.3/8x24 |
| Lawn/turf front | 20x8-10 |
Engine Specifications of Satoh, S550
- Mazda
- Liquid-cooled
- Gasoline
- 4-cylinder
| Coolant capacity | 3.2 qts [3.0 L] |
|---|---|
| Fuel system | Carburetor |
| Air cleaner | Dry |
| Rated RPM | 2300 |
| Compression | 8.5:1 |
| Displacement | 60.25 ci [1.0 L] |
| Power | 17 hp [12.7 kW] |
| Bore/Stroke | 2.677x2.677 inches [68 x 68 mm] |
| Oil capacity | 3.2 qts [3.0 L] |
| Starter volts | 12 |
| Starter | Electric |
Transmission Information of Satoh, S550
Transmission variants 1
| Type | Gear |
|---|---|
| Oil capacity | 14.8 qts [14.0 L] |
| Gears | 6 forward and 2 reverse |
| Clutch | Dry disc |
Mechanical Specs of Satoh, S550
- Two-wheel drive
- Open operator station.
- Mechanical drum brakes
- Manual steering
| Final drives | Spur gear |
|---|
Power Information of Satoh, S550
| Rear PTO Type | 540 (1.375) |
|---|---|
| Engine RPM | 540@2120 |
Three-Point Hitch of Satoh, S550
| Rear Type | I |
|---|---|
| Rear lift | 1102 lbs [499 kg] |
Electrical System of Satoh, S550
| Ground | Negative |
|---|---|
| Battery volts | 12 |
| Charging system | Alternator |
| Charging amps | 35 |
Where it sits
With 17 HP, the Satoh S550 sits just below S650 (25 HP) in Satoh's range. Its power puts it in the 7th percentile of 1970s models in our database (1259 machines).
Frequently asked questions
How much horsepower does the Satoh S550 have?
The Satoh S550 delivers 17 HP.
What years was the Satoh S550 produced?
The Satoh S550 was produced in 1972-1983.
What engine does the Satoh S550 have?
The Satoh S550 is powered by a Gasoline, 4-cylinder engine.
What transmission does the Satoh S550 use?
The Satoh S550 uses a Gear transmission.
How much does the Satoh S550 weigh?
The Satoh S550 weighs 1429 lbs [648 kg].
Is the Satoh S550 4WD?
The Satoh S550 is available in 2WD.