Introduction
Iseki SX55 Utility Tractor
Produced between 1985 and 1990, the Iseki SX55 is a utility tractor designed for versatile agricultural operations. Manufactured in Japan, this model belongs to the SX65 series and is recognized for its robust construction and mechanical reliability.
Engine and Performance
The tractor is powered by an Isuzu 4JB1 four-cylinder liquid-cooled diesel engine with a displacement of 2.8 liters. It produces 50 hp (37.3 kW) at a rated speed of 2200 RPM. The engine utilizes direct injection for fuel efficiency and features a dry-type air cleaner and electric starting with glow plug pre-heating.
Transmission and Drivetrain
The SX55 is available with two transmission configurations: a standard 12-speed syncromesh transmission (12 forward, 4 reverse) or an optional 24-speed creeper transmission (24 forward, 8 reverse). Both options utilize a 330 mm dry disc clutch. The tractor offers both two-wheel and four-wheel drive capabilities, supported by power steering and wet disc brakes for controlled operation.
Hydraulics and Hitch
The hydraulic system provides a pump flow of 9.25 gpm (35.0 lpm). The rear hitch is a Category II type, featuring both position and draft control, and provides a lift capacity of 5291 lbs (2399 kg). The independent rear PTO operates at 540 RPM at 1727 engine RPM, with a 1000 RPM option available at 2000 engine RPM.
Dimensions and Operator Station
The machine has a wheelbase of 215 cm and a ground clearance of 31 cm. It is equipped with a four-post ROPS (Roll-Over Protective Structure) with a canopy for operator safety. The standard agricultural tire configuration consists of 8.3-20 front tires and 14.9-28 rear tires, with adjustable front and rear tread widths to suit various row-crop requirements.
Conclusion
The Iseki SX55 is a durable, mid-range utility tractor suitable for general field work, implement operation, and tasks requiring high lift capacity. Its combination of mechanical simplicity and versatile transmission options makes it an effective tool for agricultural tasks.
Production Information of Iseki, SX55
- Utility tractor
- Built in Japan
| Manufacturer | Iseki |
|---|
Dimension and Tires Information of Iseki, SX55
| Rear tread | 50.4 to 69.7 inches [128 to 177 cm] |
|---|---|
| Wheelbase | 85 inches [215 cm] |
| Ground clearance | 12.4 inches [31 cm] |
| Weight | 3053 lbs [1384 kg] |
| Length | 140.2 inches [356 cm] |
| Front tread | 53.2 to 60.2 inches [135 to 152 cm] |
| Height (exhaust) | 74.2 inches [188 cm] |
| Standard tires (ag) | Front: 8.3-20. Rear: 14.9-28 |
|---|
Engine Specifications of Iseki, SX55
- Isuzu 4JB1
- Liquid-cooled
- Diesel
- 4-cylinder
| Rated RPM | 2200 |
|---|---|
| Displacement | 169.1 ci [2.8 L] |
| Fuel system | Direct injection |
| Bore/Stroke | 3.66x4.02 inches [93 x 102 mm] |
| Starter volts | 12 |
| Starter | Electric |
| Pre-heating | Glow plugs |
| Air cleaner | Dry |
| Power | 50 hp [37.3 kW] |
Transmission Information of Iseki, SX55
Transmission variants 1
| Type | Syncromesh |
|---|---|
| Gears | 12 forward and 4 reverse |
| Clutch | 330mm dry disc |
Transmission variants 2
| Type | Creeper |
|---|---|
| Gears | 24 forward and 8 reverse |
| Clutch | 330mm dry disc |
- 12-speed syncromesh
- 24-speed creeper
Mechanical Specs of Iseki, SX55
- Two- or four-wheel drive
- Four-post ROPS with canopy.
- Power steering
- Wet disc brakes
Power Information of Iseki, SX55
| Rear PTO | Independent |
|---|---|
| Rear PTO(optional) | 1000@2000 |
| Engine RPM | 540@1727 |
| Clutch | Hydraulic wet disc |
| Rear PTO Type | 540 (1.375) |
Hydraulics Specifications of Iseki, SX55
| Pump flow | 9.25 gpm [35.0 lpm] |
|---|
Three-Point Hitch of Iseki, SX55
| Rear Type | II |
|---|---|
| Control | Position and draft control |
| Rear lift | 5291 lbs [2399 kg] |
Electrical System of Iseki, SX55
| Ground | Negative |
|---|---|
| Battery volts | 12 |
Where it sits
With 50 HP, the Iseki SX55 sits just below SX65 (60 HP) in Iseki's range. Its power puts it in the 35th percentile of 1980s models in our database (2052 machines).
Frequently asked questions
How much horsepower does the Iseki SX55 have?
The Iseki SX55 delivers 50 HP.
What years was the Iseki SX55 produced?
The Iseki SX55 was produced in 1985-1990.
What engine does the Iseki SX55 have?
The Iseki SX55 is powered by a Diesel, 4-cylinder engine.
What transmission does the Iseki SX55 use?
The Iseki SX55 uses a Syncromesh transmission.
How much does the Iseki SX55 weigh?
The Iseki SX55 weighs 3053 lbs [1384 kg].
Is the Iseki SX55 4WD?
The Iseki SX55 is available in 2WD/4WD.