Overview
The Farmall 300 is a row-crop tractor produced by International Harvester from 1954 to 1956 in Rock Island, Illinois, with a total production run of 29,077 units. It features a 2.8L four-cylinder gasoline engine and was available with a 5-speed sliding gear or a 10-speed Torque Amplifier transmission. This model is equipped with an IH Fast Hitch, an independent 540 RPM rear PTO, and a 6-volt electrical system with a positive ground.
Ideal Applications
Nebraska Test Performance:
In official Nebraska Tractor Tests, this model achieved a maximum belt power of 38.42 hp and a maximum drawbar pull of 5,650 lbs while operating at a rated 1750 RPM.
Chassis and Tread Configuration:
The tricycle-style chassis is built with a 92.25-inch wheelbase and provides adjustable rear tread widths from 48 to 100 inches with a rear axle clearance of 25.5 inches.
Mechanical and Hydraulic Systems:
The tractor utilizes an open center hydraulic system with one to three valves and is equipped with mechanical disc brakes and manual steering.
Production
| Description | Row-Crop tractor / Built in Rock Island, Illinois, USA / Original price was $2,900 in 1956 |
|---|---|
| Manufacturer | Farmall (a part of International Harvester) |
| Total built | 29,077 |
Engine
| Engine type | International Harvester 2.8L 4-cyl gasoline |
|---|---|
| Fuel tank | 17 gal (64.3 L) |
| Air cleaner | oil bath |
| Bore/Stroke | 3.5625x4.25 inches (90 x 108 mm) |
| Compression | 6.6:1 |
| Coolant capacity | 16.5 qts (15.6 L) |
| Description | International Harvester C169 / gasoline / 4-cylinder / liquid-cooled |
| Displacement | 169 ci (2.8 L) |
| Idle RPM | 900-1750 |
| Rated RPM | 1750 |
| Starter volts | 6 |
| Belt (tested) | 38.42 hp (28.6 kW) |
| Drawbar (tested) | 35.43 hp (26.4 kW) |
| Plows | 3 |
Transmission
| Gears | 5 forward and 1 reverse / 10 forward and 2 reverse |
|---|---|
| Transmission | Torque Amplifier |
| Type | sliding gear / two-speed power shift |
| Transmission type | 5-speed sliding gear / 10-speed two-speed power shift |
| Transmission type | 5-speed sliding gear / 10-speed two-speed power shift |
Mechanical
| Cab | Open operator station. |
|---|---|
| Description | Manual steering / Mechanical disc brakes |
| Drive type | Two-wheel drive |
| Final drives | bull gear |
Hydraulics
| Type | open center |
|---|---|
| Valves | 1 to 3 |
Hitch
| Type | IH Fast Hitch |
|---|
PTO
| Rear PTO | independent |
|---|---|
| Rear PTO Type | 540 (1.375) |
Electrical
| Battery volts | 6 |
|---|---|
| Ground | positive |
Dimensions & Tires
| Bar rear axle | 2.75 inch diameter (69 mm) |
|---|---|
| Clearance (rear axle) | 25.5 inches (64 cm) |
| Front tread | 57 to 89.75 inches (144 to 227 cm) |
| Height (steering wheel) | 77.5 inches (196 cm) |
| Length | 136 inches (tricycle) (345 cm) |
| Rear tread | 48 to 88 inches (121 to 223 cm) / 48 to 100 inches (121 to 254 cm) |
| Weight | 5361 lbs (2431 kg) |
| Wheelbase | 92.25 inches (tricycle) (234 cm) |
| Width | 100 inches (254 cm) |
| Front tire | 5.50-16 |
| Rear tire | 11-38 |
| Weight | 5361 lbs (2431 kg) |
| Wheelbase | 92.25 inches (tricycle) (234 cm) |
| Ag front | 5.50-16 / 6.00-16 |
| Ag rear | 11-38 / 10-38 |
300 Serial Numbers
| 1954 | 501 |
|---|---|
| 1955 | 1779 |
| 1956 | 23224 |
| Description | FAQ: How to read a serial number table. |
| Location: | Serial number on the left side of the clutch housing. |
Farmall 300 attachments
| Description | front-end loader |
|---|
Nebraska Tractor Test 538
| Belt fuel use (max) | 3.4 gal/hour (12.9 l/hour) |
|---|---|
| Belt power (max) | 38.16 hp (28.5 kW) |
| Description | Gasoline 2WDApril 29 - May 2, 1955Link: Nebraska Tractor Test 538 file / Drawbar performance / Gear 2 used for power test. / Gear 1-TA used for pull test. |
| Max power | 33.73 hp (25.2 kW) |
| Max pull | 5,650 lbs (2562 kg) |
Nebraska Tractor Test 573
| Belt fuel use (max) | 4.4 gal/hour (16.7 l/hour) |
|---|---|
| Belt power (max) | 38.42 hp (28.6 kW) |
| Description | LP-gas TA 2WDMay 9 - June 4, 1956Link: Nebraska Tractor Test 573 file / Drawbar performance / Gear 3 used for power test. / Gear 1-TA used for pull test. |
| Max power | 35.43 hp (26.4 kW) |
| Max pull | 5576 lbs (2529 kg) |
References
| Description | No. 31 Power Loader published by International Harvester / Farm Loaders published in 1962, by International Harvester / New McCormick Farmall 300 published in 1955, by International Harvester / 300 Series Torque Amplifier Service Manual (GSS-1060) |
|---|
Tractor Tests
| Description | NTTL 538: gasoline 2WD / NTTL 573: LP-gas TA 2WD |
|---|
Variants
| Farmall 300 High-Clearance | high-crop tractor |
|---|---|
| IH 300 | utility tractor |