Steyr 8120
The Steyr 8120 is a tractor produced by Steyr. It is equipped with a 316.2 ci 5.2 L engine. The listed engine power is Diesel (listed): 100 hp / 74.6 kW. Transmission: synchro. Operating weight: 9,702 lbs 4400 kg.
Engine Power
Diesel (listed): 100 hp / 74.6 kW
Fuel & Capacities
32.2 gal
121.9 L
Transmission
synchro
Operating Weight
9,702 lbs
4400 kg
Overview
 | 1978 - 1984 |
|---|
Production | |
|---|---|
Manufacturer | Steyr |
Steyr 8120 Engine | |
|---|---|
Steyr 5.2L 6-cyl diesel | |
Fuel tank | 32.2 gal
121.9 L |
Engine details ...  | |
Steyr 8120 Power | |
|---|---|
Engine | 100 hp
74.6 kW |
Mechanical | |
|---|---|
Two- or four-wheel drive | |
Steering | hydrostatic power |
Disc brakes | |
Hydraulics | |
|---|---|
Total flow | 9.2 gpm
34.8 lpm |
Tractor hitch | |
|---|---|
Rear lift | 9481.5 lbs
4300 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO Type | 540/1000 |
Dimensions & Tires | |
|---|---|
Wheelbase | 100 inches
254 cm |
Weight | 9,702 lbs
4400 kg |
Front tire | 9.00-16 |
Rear tire | 18.4R34 |
Full dimensions and tires ...  | |
Engine
Engine Detail — 316.2 ci / 5.2 L Diesel
Manufacturer | Steyr WD 611.86 |
Configuration | turbocharged diesel, 6-cylinder, liquid-cooled |
Displacement | 316.2 ci
5.2 L |
Bore/Stroke | 3.94x4.33 inches
100 x 110 mm |
Power | 100 hp
74.6 kW |
Rated RPM | 2300 |
Torque | 273 lb-ft
370.2 Nm |
Torque RPM | 1400 |
Transmission
Transmission options | |
|---|---|
12-speed | |
15-speed |
Transmission — synchro
Transmission | synchro |
Gears | 12 forward and 4 reverse |
Transmission — synchro
Transmission | synchro |
Gears | 15 forward and 5 reverse |
Dimensions
Steyr 8120 Tires | |
|---|---|
Ag front | 9.00-16 |
Ag rear | 18.4R34 |
Ag front | 13.6R24 |
Ag rear | 18.4R34 |
Dimensions | |
|---|---|
Wheelbase | 100 inches
254 cm |
Length | 168.5 inches
427 cm |
Height | 103.5 inches
262 cm |
Weight | 9,702 lbs
4400 kg |
Photos
Steyr 8120 tractor photo
Recommended Implements & Sizing Guide
Engineering recommendations for Steyr 8120 based on its 100 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 4 to 5 Bottom (16-18")4 - 5 铧 (40-45 cm) | Heavy Duty | Heavy primary tillage; semi-mounted hitch recommended. |
Rotary Cutter / MowerMowing & Clearing | 10 to 12 ft Flex-Wing3.0 - 3.6 m 折叠双翼 | Heavy Duty | Wide swath pasture and crop residue shredding. |
Rotary TillerSeedbed Prep | 90 to 120 in Heavy Duty230 - 300 cm 重型旋耕机 | Commercial / Field Scale | Deep intensive seedbed preparation for commercial row crops. |
Disc HarrowSecondary Tillage | 10 to 14 ft Tandem / Offset3.0 - 4.2 m 重型交错耙 | Heavy Duty | Aggressive residue cutting in corn/cotton stubble. |
Hay BalerHay & Forage | 5x6 Round Baler or 3x3 Mid Square1.5x1.8 m 大圆捆或中型方捆机 | Heavy Duty | High density baling; requires minimum 85 PTO HP. |
Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Steyr 8120.
Estimated Continuous Field Runtime: 6.2 hrs
Approximately 6.2 hours of continuous field operation at ~75% rated power on a full tank (32.2 gal / 121.9 L).
Estimated 75% Load Fuel Burn~5.2 gal/hr (19.7 L/hr)
Engine Crankcase Oil
SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours
Transmission & Hydraulic System
UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours
Engine Cooling System
50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours
Steyr 8120 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Steyr 8120.
Converted Equivalents:
Horsepower (HP)100 hp
Kilowatts (kW)74.6 kW
Metric Horsepower (PS / CV)101.4 PS
Direct Competitor Comparison
Compare Steyr 8120 against same-era industry alternatives in the same horsepower class.
Current Model
Steyr
Steyr 8120
Engine Power:Diesel (listed): 100 hp / 74.6 kW
★ Baseline Reference
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