International Harvester 786B
The International Harvester 786B is a tractor produced by International Harvester. It is equipped with a 310 ci 5.1 L engine. The listed engine power is Diesel (listed): 100 hp / 74.6 kW. Transmission: International Harvester Torque Amplifier. Operating weight: 11354 lbs 5150 kg.
Engine Power
Diesel (listed): 100 hp / 74.6 kW
Fuel & Capacities
Diesel
Transmission
International Harvester Torque Amplifier
Operating Weight
11354 lbs
5150 kg
Overview
 | 1981 - 1982
86B SeriesRow-Crop tractor
86B Series
Row-Crop tractor |
|---|
Production | |
|---|---|
Manufacturer | International Harvester |
Row-Crop tractor | |
Built in Geelong, Australia | |
Total built | 441 |
International Harvester 786B Engine | |
|---|---|
International Harvester 5.1L 6-cyl diesel | |
Engine details ...  |
International Harvester 786B Transmission | |
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16-speed two-speed power shift | |
Transmission details ...  |
International Harvester 786B Power | |
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Engine | 100 hp
74.6 kW |
Drawbar (claimed) | 72 hp
53.7 kW |
PTO (claimed) | 81 hp
60.4 kW |
Mechanical | |
|---|---|
Two-wheel drive | |
Cab standard. |
Capacity | |
|---|---|
Hydraulic system | 22.5 gal
85.2 L |
Hydraulics | |
|---|---|
Capacity | 22.5 gal
85.2 L |
Rear valves | 2 |
Tractor hitch | |
|---|---|
Rear Type | III |
Rear lift (at ends) | 6272 lbs
2844 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO Type | 540/1000 |
Dimensions & Tires | |
|---|---|
Weight | 11354 lbs
5150 kg |
Front tire | 10.00-16 |
Rear tire | 23.1-30 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Battery volts | 12 |
References | |
|---|---|
 | |
International Harvester Australia: Geelong Works by Sarah Tomac* | |
International Harvester Tractors & Equipment in Australia & New Zealand by Graeme Quick | |
Technical Annual published in 1983, by Power Farming | |
*Publication contains known errors. |
Engine
Engine Detail — 310 ci / 5.1 L Diesel
Manufacturer | International Harvester D-310 |
Fuel Type | Diesel |
Configuration | 6-cylinder, liquid-cooled |
Displacement | 310 ci
5.1 L |
Bore/Stroke | 3.875x4.375 inches
98 x 111 mm |
Power | 100 hp
74.6 kW |
Fuel system | direct injection |
Rated RPM | 2400 |
Torque | 221.3 lb-ft
300.1 Nm |
Torque RPM | 1600 |
Starter | electric |
Starter volts | 12 |
Transmission
Transmission — International Harvester Torque Amplifier
Transmission | International Harvester Torque Amplifier |
Type | two-speed power shift |
Gears | 16 forward and 8 reverse |
Dimensions
International Harvester 786B Tires | |
|---|---|
Standard tires (ag) | Front: 10.00-16. Rear: 23.1-30 |
Dimensions | |
|---|---|
Length | 155.9 inches
395 cm |
Width | 101.6 inches
258 cm |
Shipping weight | 11354 lbs
5150 kg |
Ground clearance | 20.5 inches
52 cm |
Photos
International Harvester 786B tractor photo
Recommended Implements & Sizing Guide
Engineering recommendations for International Harvester 786B 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 International Harvester 786B.
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
International Harvester 786B Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for International Harvester 786B.
Converted Equivalents:
Horsepower (HP)100 hp
Kilowatts (kW)74.6 kW
Metric Horsepower (PS / CV)101.4 PS
Direct Competitor Comparison
Compare International Harvester 786B against same-era industry alternatives in the same horsepower class.
Current Model
International Harvester
International Harvester 786B
Engine Power:Diesel (listed): 100 hp / 74.6 kW
★ Baseline Reference
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