The Farmall BN is a 2WD row-crop tractor manufactured by Farmall (a part of International Harvester) from 1939 to 1947. The Farmall BN is equipped with a 1.9 L (113.1 cu·in) four-cylinder gasoline engine and a unsynchronized gear transmission with 4 forward and 1 reverse gears.
The Farmall model BN row-crop tractor used the International Harvester C113 engine. It is a 1.9 L, 1,853 cm2, (113.1 cu·in) four-cylinder natural aspirated gasoline engine with 76.0 mm (2.99 in) of the cylinder bore and 102.0 mm (4.02 in) of the piston stroke. The compression ratio rating is 5.33:1.
The Farmall BN is equipped with manual steering, mechanical external contracting band brakes, an open operator station, and 37.9 liters (10 US gal.; 8.3 Imp. gal) fuel tank.
Farmall BN Specifications
| General Specifications | |
| Model | Farmall BN |
| Length | 2,730 mm (107.5 in) |
| Width | 1,650 mm (65 in) |
| Height | – |
| Wheel base | 1,840 mm (72.4 in) |
| Weight | 816 kg (1,799 lbs) |
| Fuel tank capacity | 37.9 liters (10 US gal.; 8.3 Imp. gal) |
| Battery | – |
| Cabin type | Open operator station |
| Engine | |
| Engine model | International Harvester C113 |
| Engine type | Four-stroke, liquid-cooled, inline |
| Cylinders | 4 |
| Fuel type | Gasoline |
| Displacement | 1.9 L, 1,853 cm2, (113.1 cu·in) |
| Bore and stroke | 76.0 mm X 102.0 mm (2.99 in X 4.02 in) |
| Compression ratio | 5.33:1 |
| Horsepower | – |
| Oil capacity: | 4.7 L (5 US. qt, 4.1 Imp. qt.) |
| Coolant capacity: | 12.8 L (13.5 US. qt, 11.3 Imp. qt.) |
| Transmission and chassis | |
| Chassis | 4×2 2WD |
| Steering type | Manual |
| Brakes | Mechanical external contracting band |
| Transmission model | International Harvester |
| Transmission type | Unsynchronized gear |
| Gears | 4 forward and 1 reverse |
| Speed | Forward: 15.5 kmh (9.6 mph) Reverse: 4.4 kmh (2.7 mph) |
| Tires | |
| Front tires | Ag: 6×12, 7.5×10 |
| Rear tires | Ag: 9-24 |
| PTO (Power take-off shaft) | |
| Rear PTO type | – |
| Rear PTO speed | 540 rpm |
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