International Harvester 300 Tractor

Manufacturer	International Harvester
Price	2,900(USD)
Model	300
Equipment Type	Utility Tractors
Factory

NEBRASKA TRACTOR TEST 539 2

Description	Gasoline 2WD Torque Amplifier May 5 - 10, 1955 Link: Nebraska Tractor Test 539 file Drawbar performance Gear 3 used for power test Gear 1 used for pull test
Belt power (max)	41.26hp / 30.8kW
Belt fuel use (max)	4.0gal/hour / 15.1l/hour
Max power	37.36hp / 27.9kW
Max pull	4,379lbs / 1986kg

NEBRASKA TRACTOR TEST 574 2

Description	LP gas Torque Amplifier 2WD May 16 - June 1, 1956 Link: Nebraska Tractor Test 574 file Drawbar performance Gear 1 used for power test
Belt power (max)	42.68hp / 31.8kW
Belt fuel use (max)	4.7gal/hour / 17.8l/hour
Max power	38.32hp / 28.6kW

INTERNATIONAL HARVESTER 300 POWER

Plows	3-bottom
Drawbar (tested)	38.32hp / 28.6kW
Belt (tested)	42.68hp / 31.8kW

ENGINES OVERVIEW

The International Harvester 300 tractor is equipped with a versatile 2.8L 4-cylinder engine, offering both gasoline and LP gas options, which allows for fuel flexibility and can improve operational efficiency based on the availability of fuels. The gasoline variant typically provides better cold-start performance, while the LP gas option is known for lower emissions and cleaner operation. However, the tractor's heavier weight and size may limit maneuverability in tighter spaces, making it more suited for larger agricultural applications.

Description

International Harvester 2.8L 4-cyl gasoline International Harvester 2.8L 4-cyl LP gas

ENGINE DETAIL 1

The International Harvester 300 tractor is powered by a C169 gasoline 4-cylinder engine with a displacement of 169 cubic inches (2.8L) and a low compression ratio of 6.6:1, making it suitable for running on lower octane fuel while providing moderate power at a rated RPM of 2000. Its bore and stroke dimensions (3.5625x4.25 inches) indicate a torque-oriented design, ideal for pulling and fieldwork scenarios, though lower RPM may limit peak power for high-speed applications. With a 6-volt starter and a coolant capacity of 16 quarts, maintenance and starting could be challenges in colder conditions, necessitating attention to battery health and cooling system integrity.

Description	International Harvester C169 gasoline 4-cylinder liquid-cooled
Displacement	169ci / 2.8L
Bore/Stroke	3.5625x4.25inches / 90x 108mm
Compression	6.6:1
Rated RPM	2000
Starter volts	6
Coolant capacity	16qts / 15.1L

ENGINE DETAIL 2

The International Harvester 300 tractor is powered by a C169 LP gas engine with a 2.8L displacement and an 8.75:1 compression ratio, making it suitable for low-to-moderate load applications requiring efficient fuel use. Its oil bath air cleaner enhances durability in dusty conditions, while the engine's rated RPM of 1750 provides a good balance of power and torque for pulling and tilling tasks. However, potential challenges include limited power output compared to modern tractors and the reliance on LP gas, which may affect availability and refueling options in some regions.

Description	International Harvester C169 LP gas 4-cylinder liquid-cooled
Displacement	169ci / 2.8L
Bore/Stroke	3.5625x4.25inches / 90x 108mm
Air cleaner	oil bath
Compression	8.75:1
Rated RPM	1750
Starter volts	12

INTERNATIONAL HARVESTER 300 ENGINES

The International Harvester 300 tractor features a 2.8L 4-cylinder gasoline engine or an LP gas variant, offering versatility in fuel choice that can enhance operational efficiency in diverse agricultural scenarios. With an 11.25-gallon (42.6L) fuel tank, it provides a balance between operational range and weight, though frequent refueling may be required for heavy-duty tasks. Key considerations include fuel availability and potential performance differences between gasoline and LP gas, with LP gas typically offering cleaner emissions but potentially lower power output.

Description	International Harvester 2.8L 4-cyl gasoline International Harvester 2.8L 4-cyl LP gas
Fuel tank	11.25gal / 42.6L

TRANSMISSIONS OVERVIEW

The International Harvester 300 features a 5-speed sliding gear transmission paired with a 10-speed partial power shift, offering a versatile range of gear ratios for various field conditions. This setup allows for efficient power application, minimizing ground speed fluctuations during operation. However, the mechanical complexity of the power shift system may require more maintenance and repair expertise compared to simpler transmission designs.

Description

5-speed sliding gear 10-speed partial power shift

TRANSMISSION 1

The International Harvester 300 features a sliding gear transmission, offering 5 forward and 1 reverse gear, which can provide a good balance of speed and torque for various agricultural tasks. The dry disc clutch enhances durability and ease of maintenance but may require more effort for engagement compared to wet clutches. Be mindful of the potential challenges in low-speed operation, as the sliding gear system can result in increased wear if not properly managed.

Manufacturer	International Harvester
Type	sliding gear
Gears	5 forward and 1 reverse
Clutch	dry disc

TRANSMISSION 2

The International Harvester 300 tractor features a Torque Amplifier transmission, providing efficient partial power shifting across 10 forward and 2 reverse gears, which enhances operational flexibility and ease of use. The dry disc clutch offers reliable engagement but may require more maintenance and management of heat during extensive use compared to wet clutches. This setup is ideal for varied applications, from field work to transport, but operators should be aware of potential wear on clutch components under heavy loads.

Transmission	International Harvestor Torque Amplifier
Type	partial power shift
Gears	10 forward and 2 reverse
Clutch	dry disc

MECHANICAL

The International Harvester 300's 4x2 2WD chassis provides basic traction, suitable for flat terrain but may struggle in uneven or muddy conditions. The differential mechanical disc braking system offers reliable stopping power, though maintenance may be frequent due to exposure in an open operator station. The dual transmission options, including a 5-speed sliding gear and a 10-speed partial power shift, enhance versatility for various farming tasks but may require operator training to optimize gear selection.

Chassis	4x2 2WD
Brakes	differential mechanical disc
Cab	Open operator station
Transmissions	5-speed sliding gear 10-speed partial power shift

TRACTOR HITCH

Type	IH Fast Hitch

POWER TAKE-OFF (PTO)

Rear PTO	transmission independent (with TA)
Rear RPM	540

INTERNATIONAL HARVESTER 300 TIRES

The International Harvester 300 tractor features an agricultural front tire size of 5.50-16 and rear options of 10.00x28 or 12.00x28, providing a balance between maneuverability and traction. The larger rear tires enhance soil engagement and stability during heavy-duty tasks, making it ideal for plowing or tilling. However, the varying rear tire options may require careful choice based on load and operational conditions to avoid uneven wear and optimize performance.

Ag front	5.50-16
Ag rear	10.00x28/12.00x28

DIMENSIONS

Wheelbase	75inches / 190cm
Length	118inches / 299cm
Width	65.25inches / 165cm
Height	58inches / 147cm
Operating weight	4,413lbs / 2001kg
Ballasted weight	6,603lbs / 2995kg

DIMENSIONS & TIRES

The International Harvester 300 tractor features a 75-inch wheelbase, providing stability and maneuverability, particularly suited for small to medium-sized farms. Its weight of 4,413 lbs ensures good traction and balance, while the front tire size of 5.50-16 and rear tire size of 10.00x28 enhance performance in various terrains and tasks. However, the narrower front tire may limit its capability in very muddy conditions, making it less effective in excessively wet environments.

Wheelbase	75inches / 190cm
Weight	4,413lbs / 2001kg
Front tire	5.50-16
Rear tire	10.00x28

300 SERIAL NUMBERS

1955	501
1956	20219
Final	33664

ELECTRICAL

Ground	positive
Battery volts	6/12 (LP gas)

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