International Harvester 4786
Power
350 hp
Production
1978-1981
Engine
Turbocharged diesel, 8-cylinder
Transmission
Gear
Weight
30200 lbs*Weight with 23.1-30 duals. [13698 kg]
Drive
4WD
From the same series:
Introduction
International Harvester 4786: Heavy-Duty 4WD Tractor
The International Harvester 4786 is a high-horsepower four-wheel-drive tractor manufactured by Steiger and produced in Fargo, North Dakota, between 1978 and 1981. Designed for large-scale agricultural operations, this model occupies the heavy-duty segment of the late 1970s equipment market.
Engine and Performance
The tractor is powered by the International Harvester DVT-800, an 8-cylinder, liquid-cooled, turbocharged diesel engine. It features a displacement of 798 cubic inches (13.1 L) and delivers a rated power of 350 hp at 2600 RPM. The engine uses a compression ratio of 15.6:1 and is equipped with a dry-type air cleaner.
Transmission and Drivetrain
Power is transferred through a gear-type transmission offering 10 forward and 2 reverse speeds, managed by a dry disc clutch. The 4786 utilizes a full-time four-wheel-drive system supported by planetary final drives, which are engineered to handle high torque loads during heavy tillage and traction tasks.
Hydraulics and Braking
The machine features an open-center hydraulic system with a total flow capacity of 43 gpm (162.8 lpm). This system provides 19 gpm for implement operation and 24 gpm dedicated to steering flow. Stopping power is provided by hydraulic wet disc brakes, ensuring consistent performance under heavy load conditions.
Dimensions and Chassis
With a wheelbase of 118 inches (299 cm) and an operating weight of approximately 30,200 lbs (13,698 kg) when equipped with dual tires, the 4786 provides significant footprint for traction. It is equipped with a standard cab featuring air-conditioning to support operator productivity during long working hours.
Conclusion
The International Harvester 4786 is a specialized high-capacity tractor tailored for demanding primary tillage and heavy draft applications. Its robust drivetrain, high-displacement engine, and substantial operating weight make it a dependable machine for large-acreage farming requirements.
Production Information of International Harvester, 4786
- Original price was $78,700 in 1981
- Built in Fargo, North Dakota, USA
- Four-wheel Drive (4WD) tractor
| Distributor | International Harvester |
|---|---|
| Manufacturer | Steiger |
Dimension and Tires Information of International Harvester, 4786
| Front tread | 68.1 to 125.1 inches [172 to 317 cm] |
|---|---|
| Wheelbase | 118 inches [299 cm] |
| Front axle | 4 inch diameter [101 mm] |
| Operating weight | 30200 lbs [13698 kg] |
| Length | 241 inches [612 cm] |
| Rear tread | 68.1 to 125.1 inches [172 to 317 cm] |
| Rear axle | 4 inch diameter [101 mm] |
| Width | 117 inches [297 cm] |
Weight with 23.1-30 duals.
| Ag front | 24.5-32 |
|---|---|
| Ag rear | 24.5-32 |
Engine Specifications of International Harvester, 4786
- International Harvester DVT-800
- Liquid-cooled
- Turbocharged diesel
- 8-cylinder
| Idle RPM | 1000-2850 |
|---|---|
| Displacement | 798 ci [13.1 L] |
| Air cleaner | Dry |
| Bore/Stroke | 5.31x4.50 inches [135 x 114 mm] |
| Starter volts | 12 |
| Rated RPM | 2600 |
| Compression | 15.6:1 |
| Power | 350 hp [261.0 kW] |
Transmission Information of International Harvester, 4786
Transmission variants 1
| Type | Gear |
|---|---|
| Gears | 10 forward and 2 reverse |
| Clutch | Dry disc |
Mechanical Specs of International Harvester, 4786
- Four-wheel drive
- Cab standard with air-conditioning.
- Hydraulic wet disc brakes
| Final drives | Planetary |
|---|
Power Information of International Harvester, 4786
- Https://www.tractordata.com/farm-tractors/000/3/9/393-international-harvester-4786-tests.html
Hydraulics Specifications of International Harvester, 4786
| Type | Open center |
|---|---|
| Steering flow | 24 gpm [90.8 lpm] |
| Pump flow | 19 gpm [71.9 lpm] |
| Total flow | 43 gpm [162.8 lpm] |
Three-Point Hitch of International Harvester, 4786
| Rear Type(optional) | IV |
|---|
Where it sits
With 350 HP, the International Harvester 4786 sits just above 7788 (330 HP) in International Harvester's range. Its power puts it in the 98th percentile of 1970s models in our database (1259 machines).
Frequently asked questions
How much horsepower does the International Harvester 4786 have?
The International Harvester 4786 delivers 350 HP.
What years was the International Harvester 4786 produced?
The International Harvester 4786 was produced in 1978-1981.
What engine does the International Harvester 4786 have?
The International Harvester 4786 is powered by a Turbocharged diesel, 8-cylinder engine.
What transmission does the International Harvester 4786 use?
The International Harvester 4786 uses a Gear transmission.
How much does the International Harvester 4786 weigh?
The International Harvester 4786 weighs 30200 lbs*Weight with 23.1-30 duals. [13698 kg].
Is the International Harvester 4786 4WD?
The International Harvester 4786 is available in 4WD.