International Harvester 4300
Power
300 hp
Production
1961-1965
Engine
Turbocharged diesel, 6-cylinder
Weight
29,815 lbs [13524 kg]
Drive
4WD
From the same series:
Introduction
International Harvester 4300, 4WD heavy-duty tractor
The International Harvester 4300 is a high-capacity four-wheel drive tractor manufactured by Hough in Libertyville, Illinois, between 1961 and 1965. Designed as a direct competitor in the large-scale agricultural equipment market, it represented a significant, albeit limited, production effort by International Harvester to exceed the performance metrics of existing heavy tractors of the era.
Engine and Performance
The tractor is powered by a 6-cylinder, turbocharged diesel engine with a displacement of 817 cubic inches (13.4 liters). It features a compression ratio of 15.5:1 and delivers 300 horsepower at a rated engine speed of 2100 RPM. The cooling system has a capacity of 65.3 liters, and the engine oil capacity is 32.2 liters.
Transmission and Drivetrain
The machine utilizes a 4x4 four-wheel drive configuration. Transmission options include a 6-speed or an 8-speed configuration, the latter offering 8 forward and 4 reverse gears to suit various field operations. Steering is achieved through a hydraulic-powered system capable of two or four-wheel operation, complemented by air brakes for heavy-duty stopping requirements.
Hydraulic System
The hydraulic system is equipped with three valves to operate external implements. The primary pump delivers a flow rate of 40 gallons per minute (151.4 liters per minute), with an optional capacity of 55 gallons per minute (208.2 liters per minute). The steering system operates with a dedicated flow of 40 gallons per minute.
Dimensions and Construction
With an operating weight of 29,815 lbs (13,524 kg), the 4300 is built for heavy traction tasks. It has a wheelbase of 120 inches (304 cm), an overall length of 257 inches (652 cm), and a width of 111.5 inches (283 cm). The ground clearance is measured at 19 inches (48 cm), providing stability over uneven terrain.
Conclusion
With only 44 units produced, the International Harvester 4300 is a rare example of early large-scale 4WD engineering. Its design remains a notable reference in agricultural history for its ambition to push the limits of tractor size and power during the mid-1960s.
Production Information of International Harvester, 4300
- The massive model 4300 tractor was International's entry into the large four-wheel drive market. The tractor was built by Hough (manufacturer of the Pay Loader) and the final design was influenced by a desire to be larger than the John Deere 8010. Unfortunately for International, the 4300 was "too big, too soon" and production was limited.
- Built in Libertyville, Illinois, USA
- Original price was $12,000 in 1970
- Four-wheel Drive (4WD) tractor
| Distributor | International Harvester |
|---|---|
| Total built | 44 |
| Manufacturer | Hough |
Dimension and Tires Information of International Harvester, 4300
| Wheelbase | 120 inches [304 cm] |
|---|---|
| Ground clearance | 19 inches [48 cm] |
| Operating weight | 29,815 lbs [13524 kg] |
| Length | 257 inches [652 cm] |
| Width | 111.5 inches [283 cm] |
| Ag front | 23.1-26 |
|---|---|
| Ag rear | 23.5-25 |
| Ag rear | 23.1-26 |
| Ag front | 23.5-25 |
Engine Specifications of International Harvester, 4300
- Liquid-cooled
- Turbocharged diesel
- 6-cylinder
| Starter volts | 12 |
|---|---|
| Displacement | 817 ci [13.4 L] |
| Air cleaner | Dry with paper element |
| Bore/Stroke | 5.375x6.00 inches [137 x 152 mm] |
| Coolant capacity | 69 qts [65.3 L] |
| Oil capacity | 34 qts [32.2 L] |
| Rated RPM | 2100 |
| Compression | 15.5:1 |
| Power | 300 hp [223.7 kW] |
Transmission Information of International Harvester, 4300
Transmission variants 1
| Gears | 6 forward and 1 reverse |
|---|
Transmission variants 2
| Gears | 8 forward and 4 reverse |
|---|
- 6-speed
- 8-speed
Mechanical Specs of International Harvester, 4300
- Open operator station. Cab optional with available air-conditioning.
- Air brakes brakes
| Drive | 4x4 4WD |
|---|---|
| Steering | Hydraulic powered two- or four-wheel steering |
Power Information of International Harvester, 4300
- Https://www.tractordata.com/farm-tractors/000/3/8/388-international-harvester-4300-tests.html
Hydraulics Specifications of International Harvester, 4300
| Valves | 3 |
|---|---|
| Steering cap. | 60 qts [56.8 L] |
| Steering flow | 40 gpm [151.4 lpm] |
| Pump flow | 40 gpm [151.4 lpm] |
| Pump flow(optional) | 55 gpm [208.2 lpm] |
Electrical System of International Harvester, 4300
| Charging system | Alternator |
|---|---|
| Battery volts | 6 |
| Charging amps | 50 |
| Batteries | 4 |
Where it sits
With 300 HP, the International Harvester 4300 sits just above 4100 (144 HP) in International Harvester's range. Its power puts it in the 99th percentile of 1960s models in our database (709 machines).
Frequently asked questions
How much horsepower does the International Harvester 4300 have?
The International Harvester 4300 delivers 300 HP.
What years was the International Harvester 4300 produced?
The International Harvester 4300 was produced in 1961-1965.
What engine does the International Harvester 4300 have?
The International Harvester 4300 is powered by a Turbocharged diesel, 6-cylinder engine.
How much does the International Harvester 4300 weigh?
The International Harvester 4300 weighs 29,815 lbs [13524 kg].
Is the International Harvester 4300 4WD?
The International Harvester 4300 is available in 4WD.