Farmall M

Farmall M tractorThe 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)