International Harvester 4786

Name: International Harvester 4786
Brand: International Harvester

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

Over 200 HP 1970s 1980s

From the same series:

4586

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."

Introduction

Production Information of International Harvester, 4786

The production information of the tractor (4786) includes details about its manufacturing.

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

This section sums up the dimension and tires information of the tractor.


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*Weight with 23.1-30 duals. [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]


Ag front	24.5-32
Ag rear	24.5-32

Engine Specifications of International Harvester, 4786

Get the specifications for the engine and if different options are available.

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, 4786Y

Discover all variants of transmission available for this tractor model.

Transmission variants 1


Type	Gear
Gears	10 forward and 2 reverse
Clutch	Dry disc

Mechanical Specs of International Harvester, 4786Y

This section summarizes all mechanical information such as the brake system and other specifications.

Four-wheel drive

Cab standard with air-conditioning.

Hydraulic wet disc brakes


Final drives	Planetary

Power Information of International Harvester, 4786Y

Discover the power specifications and options available for this tractor model but also PTO (Power Take-off) information.

Https://www.tractordata.com/farm-tractors/000/3/9/393-international-harvester-4786-tests.html

Hydraulics Specifications of International Harvester, 4786

Hydraulic system type, pressure, pump flow and valves.


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

Hitch category and rear/front lift capacity.


Rear Type	IV OptOptional

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.

More International Harvester models

7788330 HP · 1982 - 1984 4300300 HP · 1961 - 1965 4568300 HP · 1975 - 1976 4586300 HP · 1976 - 1981 7588300 HP · 1982 - 1984 7488235 HP · 1985 4386230 HP · 1976 - 1981 7388230 HP · 1982 - 1984

View all 252 International Harvester models →

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