The Farmall M is a 2WD row-crop tractor manufactured by the Farmall (a part of International Harvester) in Rock Island, Illinois, USA from 1939 to 1954. The Farmall M is equipped with 4.1 L four-cylinder gasoline or distillate engine and sliding gear transmission with 5 forward and 1 reverse gear.
The Farmall M row-crop tractor is equipped with manual steering, mechanical contracting band brakes, open operator station and 79.5 liters (21 US gal.; 17.5 Imp. gal) fuel tank.
The tractor could be equipped with the following engines:
- International Harvester. It is a 4.1 L, 4,059 cm2, (247.7 cu·in) four-cylinder natural aspirated distillate engine with 98.0 mm (3.86 in) of the cylinder bore and 133.0 mm (5.24 in) of the piston stroke. The compression ratio rating is 4.75:1 or 4.5:1.
- International Harvester C248. It is a 4.1 L, 4,059 cm2, (247.7 cu·in) four-cylinder natural aspirated gasoline engine. The cylinder bore is 98.0 mm (3.86 in) and the piston stroke is 133.0 mm (5.24 in). The compression ratio rating is 5.65:1.
Farmall M Specifications
| General Specifications | |
| Model | Farmall M |
| Length | 3,370 mm (132.7 in) |
| Width | 2,130 mm (83.9 in) |
| Height | 1,980 mm (78 in) |
| Wheel base | – |
| Weight | 3,070 kg (6,768 lbs) |
| Fuel tank capacity | 79.5 liters (21 US gal.; 17.5 Imp. gal) |
| Battery | 6V |
| Cabin type | Open operator station |
| Engine | |
| Engine model | International Harvester |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 4 |
| Fuel type | Distillate or kerosene |
| Displacement | 4.1 L, 4,059 cm2, (247.7 cu·in) |
| Bore and stroke | 98.0 mm X 133.0 mm (3.86 in X 5.24 in) |
| Compression ratio | 4.75:1 or 4.5:1 |
| Horsepower | – |
| Oil capacity: | 7.6 L (8.0 US. qt, 6.7 Imp. qt.) |
| Coolant capacity: | 22.7 L (24.0 US. qt, 20.0 Imp. qt.) |
| Spark plug gap | 0.635 mm (0.025 in) |
| Engine | |
| Engine model | International Harvester C248 |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 4 |
| Fuel type | Gasoline |
| Displacement | 4.1 L, 4,059 cm2, (247.7 cu·in) |
| Bore and stroke | 98.0 mm X 133.0 mm (3.86 in X 5.24 in) |
| Compression ratio | 5.65:1 |
| Horsepower | – |
| Oil capacity: | 7.6 L (8.0 US. qt, 6.7 Imp. qt.) |
| Coolant capacity: | 22.7 L (24.0 US. qt, 20.0 Imp. qt.) |
| Transmission and chassis | |
| Chassis | 4×2 2WD |
| Steering type | Manual |
| Brakes | Mechanical contracting band |
| Transmission model | – |
| Transmission type | Sliding gear |
| Gears | 5 forward and 1 reverse |
| Speed | Forward: 26.3 kmh (16.3 mph) Reverse: 5.0 (3.1 mph) |
| Tires | |
| Front tires | Ag: 6.00-16, 22.50×4 (steel) |
| Rear tires | Ag: 11-38, 51×8 (steel), 10-38, 12-38, 11.25-36 |
| PTO (Power take-off shaft) | |
| Rear PTO type | – |
| Rear PTO spped | 540 rpm |
| Hydraulic system | |
| Pressure |
Early: 500 psi (34.5 bar) Later: 800 psi (55.2 bar) |