Steyr 8140
The Steyr 8140 is a tractor produced by Steyr. It is equipped with a 402.5 ci 6.6 L engine. The listed engine power is Diesel (listed): 120 hp / 89.5 kW. Transmission: synchro. Drive type: 4x2 2WD. Operating weight: 11,642 lbs 5280 kg.
Engine Power
Diesel (listed): 120 hp / 89.5 kW
Drive & Traction
4x2 2WD
Fuel & Capacities
52 gal
196.8 L
Transmission
synchro
Operating Weight
11,642 lbs
5280 kg
Overview
 | 1977 - 1982 |
|---|
Production | |
|---|---|
Manufacturer | Steyr |
Steyr 8140 Engine | |
|---|---|
6.6L 6-cyl diesel | |
Fuel tank | 52 gal
196.8 L |
Engine details ...  | |
Steyr 8140 Transmission | |
|---|---|
12-speed | |
Transmission details ...  |
Steyr 8140 Power | |
|---|---|
Engine | 120 hp
89.5 kW |
Mechanical | |
|---|---|
Drive | 4x2 2WD |
4x4 MFWD 4WD optional | |
Steering | hydrostatic power |
Disc brakes | |
Hydraulics | |
|---|---|
Total flow | 10.8 gpm
40.9 lpm |
Tractor hitch | |
|---|---|
Rear lift | 9922.5 lbs
4500 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO Type | 540/1000 |
Dimensions & Tires | |
|---|---|
Wheelbase | 107.1 inches
272 cm |
Weight | 11,642 lbs
5280 kg |
Front tire | 11.00-16 |
Rear tire | 18.4-38 |
Full dimensions and tires ...  | |
Engine
Engine Detail — 402.5 ci / 6.6 L Diesel
Manufacturer | WD 612.40 |
Fuel Type | Diesel |
Configuration | 6-cylinder |
Displacement | 402.5 ci
6.6 L |
Bore/Stroke | 4.25x4.72 inches
108 x 120 mm |
Power | 120 hp
89.5 kW |
Rated RPM | 2200 |
Torque | 333 lb-ft
451.5 Nm |
Torque RPM | 1500 |
Transmission
Transmission — synchro
Transmission | synchro |
Gears | 12 forward and 4 reverse |
Dimensions
Steyr 8140 Tires | |
|---|---|
Ag front | 11.00-16 |
Ag rear | 18.4-38 |
Ag front | 14.9-28 |
Ag rear | 18.4-38 |
Dimensions | |
|---|---|
Wheelbase | 107.1 inches
272 cm |
Length | 178.0 inches
452 cm |
Height | 109.1 inches
277 cm |
Weight | 11,642 lbs
5280 kg |
Recommended Implements & Sizing Guide
Engineering recommendations for Steyr 8140 based on its 120 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 | 15 to 22 ft Folding Disc4.5 - 6.7 m 折叠式圆盘耙 | Commercial / Field Scale | Wide commercial field leveling; requires hydraulic remotes. |
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 8140.
Estimated Continuous Field Runtime: 8.3 hrs
Approximately 8.3 hours of continuous field operation at ~75% rated power on a full tank (52 gal / 196.8 L).
Estimated 75% Load Fuel Burn~6.2 gal/hr (23.6 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 8140 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Steyr 8140.
Converted Equivalents:
Horsepower (HP)120 hp
Kilowatts (kW)89.5 kW
Metric Horsepower (PS / CV)121.7 PS
Direct Competitor Comparison
Compare Steyr 8140 against same-era industry alternatives in the same horsepower class.
Current Model
Steyr
Steyr 8140
Engine Power:Diesel (listed): 120 hp / 89.5 kW
★ Baseline Reference
International HarvesterMarket Competitor
International Harvester 1046
Engine Power:108.5
Production Years:1971 - 1978
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