Steyr 8120
Power
100 hp
Production
1978-1984
Engine
Turbocharged diesel, 6-cylinder
Transmission
Synchro
Weight
9,702 lbs [4400 kg]
Drive
2WD/4WD
From the same series:
Introduction
Steyr 8120 Tractor
The Steyr 8120 is a 100 hp agricultural tractor produced by Steyr between 1978 and 1984. As a key model of the 8100 series, it was engineered as a versatile, mid-range workhorse capable of handling varied field tasks during its production era.
Engine and Performance
The tractor is powered by the Steyr WD 611.86, a 6-cylinder liquid-cooled turbocharged diesel engine with a displacement of 5.2 liters (316.2 ci). It produces 100 hp (74.6 kW) at a rated speed of 2300 RPM. The engine delivers 273 lb-ft (370.2 Nm) of torque, reaching its peak at 1400 RPM, providing the necessary lugging ability for agricultural operations.
Transmission and Drivetrain
The 8120 offers two synchronized transmission configurations: a 12-speed (12 forward and 4 reverse) or a 15-speed (15 forward and 5 reverse) setup, allowing operators to select the appropriate gear for specific field or transport speeds. It is available in both two-wheel and four-wheel drive configurations, supported by hydrostatic power steering and disc brakes for reliable control.
Hydraulics and Hitch
The hydraulic system provides a total flow rate of 9.2 gpm (34.8 lpm). The rear hitch is capable of lifting 9,481.5 lbs (4300 kg), enabling the use of heavy mounted implements. The rear PTO operates at standard speeds of 540 and 1000 RPM, ensuring compatibility with a wide range of power-take-off equipment.
Dimensions and Stability
With a wheelbase of 100 inches (254 cm) and a total weight of 9,702 lbs (4400 kg), the tractor maintains a stable footprint. It measures 168.5 inches (427 cm) in length and 103.5 inches (262 cm) in height, providing a balance between physical presence and maneuverability in standard farming environments.
Conclusion
The Steyr 8120 remains a durable machinery choice for farmers seeking a reliable 100 hp tractor. Its combination of a high-torque 6-cylinder engine, flexible transmission options, and substantial lifting capacity makes it well-suited for general tillage, heavy hauling, and implement management.
Production Information of Steyr, 8120
| Manufacturer | Steyr |
|---|
Dimension and Tires Information of Steyr, 8120
| Wheelbase | 100 inches [254 cm] |
|---|---|
| Weight | 9,702 lbs [4400 kg] |
| Length | 168.5 inches [427 cm] |
| Height | 103.5 inches [262 cm] |
| Ag front | 9.00-16 |
|---|---|
| Ag rear | 18.4R34 |
| Ag rear | 18.4R34 |
| Ag front | 13.6R24 |
Engine Specifications of Steyr, 8120
- Steyr WD 611.86
- Liquid-cooled
- Turbocharged diesel
- 6-cylinder
| Power | 100 hp [74.6 kW] |
|---|---|
| Displacement | 316.2 ci [5.2 L] |
| Rated RPM | 2300 |
| Bore/Stroke | 3.94x4.33 inches [100 x 110 mm] |
| Torque RPM | 1400 |
| Torque | 273 lb-ft [370.2 Nm] |
Transmission Information of Steyr, 8120
Transmission variants 1
| Transmission | Synchro |
|---|---|
| Gears | 12 forward and 4 reverse |
Transmission variants 2
| Transmission | Synchro |
|---|---|
| Gears | 15 forward and 5 reverse |
- 12-speed
- 15-speed
Mechanical Specs of Steyr, 8120
- Two- or four-wheel drive
- Disc brakes
| Steering | Hydrostatic power |
|---|
Power Information of Steyr, 8120
| Rear PTO Type | 540/1000 |
|---|
Hydraulics Specifications of Steyr, 8120
| Total flow | 9.2 gpm [34.8 lpm] |
|---|
Three-Point Hitch of Steyr, 8120
| Rear lift | 9481.5 lbs [4300 kg] |
|---|
Where it sits
With 100 HP, the Steyr 8120 sits between 8100 (85 HP) and 8130 (120 HP) in Steyr's range. Its power puts it in the 68th percentile of 1970s models in our database (1259 machines).
Frequently asked questions
How much horsepower does the Steyr 8120 have?
The Steyr 8120 delivers 100 HP.
What years was the Steyr 8120 produced?
The Steyr 8120 was produced in 1978-1984.
What engine does the Steyr 8120 have?
The Steyr 8120 is powered by a Turbocharged diesel, 6-cylinder engine.
What transmission does the Steyr 8120 use?
The Steyr 8120 uses a Synchro transmission.
How much does the Steyr 8120 weigh?
The Steyr 8120 weighs 9,702 lbs [4400 kg].
Is the Steyr 8120 4WD?
The Steyr 8120 is available in 2WD/4WD.