International Harvester

International Harvester 300

The International Harvester 300 is a utility tractor produced from 1955 to 1956. It features a 2.8L 4-cylinder gasoline or LP gas engine, with an estimated 45.8 hp. The tractor offers 5-speed sliding gear or 10-speed two-speed power shift transmissions. It has a wheelbase of 75 inches and weighs 4313 lbs operating weight. The 300 was built in large numbers and was notable for being the 3 millionth International Harvester tractor built. It includes features such as two-wheel drive, differential mechanical disc brakes, and an open operator station. The tractor uses an IH Fast Hitch and has a rear PTO with 540 rpm. It can pull 3-bottom plows and has tested drawbar power of 38.32 hp. The 300 supports attachments like the International 33A Loader with a 1500 lbs lift capacity.

Power45 hp[B]

Founded1955 - 1956

Model300

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Technical Specifications

Detailed specifications and technical data for International Harvester 300

Power

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

Engine

Idle RPM	900-2000
Rated RPM	2000
Air cleaner	oil bath
Bore/Stroke	3.5625x4.25 inches (90 x 108 mm)
Compression	6.6:1
Displacement	169 ci (2.8 L)
Oil capacity	6 qts (5.7 L)
Starter volts	6
Engine options	International Harvester 2.8L 4-cyl gasoline, International Harvester 2.8L 4-cyl LP gas
Coolant capacity	16 qts (15.1 L)
Rated RPM LP gas	1750
Compression LP gas	8.75:1
Engine detail LP gas	International Harvester C169, LP gas, 4-cylinder, liquid-cooled
Starter volts LP gas	12
Engine detail gasoline	International Harvester C169, gasoline, 4-cylinder, liquid-cooled

Capacity

Fuel	11.25 gal (42.6 L)
Hydraulic system	3.25 gal (12.3 L)

Variants

Farmall 300	row-crop tractor

Electrical

Ground	positive
Battery volts	6, 12 (LP gas)

Hydraulics

Capacity	3.25 gal (12.3 L)

Mechanical

Drive	Two-wheel drive
Brakes	Differential mechanical disc brakes
Operator station	Open operator station

Production

Type	Utility tractor
Notable	The 3 millionth International Harvester built tractor was an IH 300 utility, serial number 501, on April 5, 1955.
Years made	1955 - 1956
Built by IH	30,851 (IH)
Total built	59,928 (total)
Original price	$2,900 in 1956
Built by Farmall	29,077 (Farmall)

Attachments

Loader	International 33A Loader
Clearance	96 inches clearance (dumped) (243 cm)
Bucket width	40 inches (101 cm)
Lift capacity	1500 lbs lift (full at pin) (680 kg)
Breakout force	2600 lbs breakout (1179 kg)

Transmission

Manufacturer	International Harvester
Type sliding gear	sliding gear
Gears sliding gear	5 forward and 1 reverse
Clutch sliding gear	dry disc
Transmission options	5-speed sliding gear, 10-speed two-speed power shift
Type torque amplifier	two-speed power shift
Gears torque amplifier	10 forward and 2 reverse
Clutch torque amplifier	dry disc
Transmission torque amplifier	International Harvestor Torque Amplifier

Tractor hitch

Type	IH Fast Hitch

Serial Numbers

1955	501
1956	20219
Final	33664
Location	Serial number plate attached to the tractor's clutch housing

Dimensions & Tires

Width	65.25 inches (165 cm) *Minimum width
Length	119 inches (302 cm)
Rear tire	10-28, 12-24, 13-24, 14-24, 11-28, 12-28
Wheelbase	75 inches (190 cm)
Front tire	5.50-16, 6.00-16
Ballasted weight	6603 lbs (2995 kg)
Ground clearance	20.5 inches (52 cm)
Operating weight	4313 lbs (1956 kg)
Height (steering wheel)	59 inches (149 cm)