Farmall M: all source data

All 79 values recorded for this model, as the source lists them and in its units. The spec sheet shows the same data checked, typed and converted.

Overview

Production
ManufacturerFarmall (a part of International Harvester)
(no label)Row-Crop tractor
(no label)Built in Rock Island, Illinois, USA
Total built270,140
Original price$1,440 (1946 )
Original price$2,600 (1952 )
(no label)The M was also available in the MV high-clearance "vegetable version" and the MD diesel. The Farmall M was the row-crop version of the McCormick-Deering W-6. In the late 1950s, the M continued production at Doncaster after it had ceased at the Farmall Works, these are often referred to as a model BM.
Engine
(no label)International Harvester 4.1L 4-cyl distillate
(no label)International Harvester 4.1L 4-cyl gasoline
Fuel tank21 gal | 79.5 L
Aux. fuel1 gal | 3.8 L
Transmission
(no label)5-speed sliding gear
Power
Drawbar (claimed)25 hp | 18.6 kW
Belt (claimed)31-33 hp | 23.1 kW
Plows3 (14-inch)
Drawbar (tested)33.1 hp | 24.7 kW
PTO (tested)36.07 hp | 26.9 kW
Belt (tested)36.66 hp | 27.3 kW
Mechanical
(no label)Two-wheel drive
(no label)Manual steering
(no label)Mechanical contracting band brakes
(no label)Open operator station.
Hydraulics
TypeLift-All
Pressure500 psi (early) | 34.5 bar
Pressure800 psi (late) | 55.2 bar
Pto
Rear PTO Type540 (1.375)
Dimensions
Wheelbase88.5 inches | 224 cm
Weight4858 lbs | 2203 kg
Front tire6.00-16
Rear tire11-38
Serial location
(no label)Data plate on the left side of the engine area.

Engine

Engine options
(no label)International Harvester 4.1L 4-cyl distillate
(no label)International Harvester 4.1L 4-cyl gasoline
Engine detail
(no label)International Harvester
(no label)distillate
(no label)4-cylinder
(no label)liquid-cooled vertical I-head
Displacement247.7 ci | 4.1 L
Bore/Stroke3.875x5.25 inches | 98 x 133 mm
Compression4.75:1
Compression4.5:1
Rated RPM1,450
Firing order1-3-4-2
Oil capacity8 qts | 7.6 L
Coolant capacity (Coolant)24 qts | 22.7 L
Sparkplug gap0.025 inches | 0.635 mm
Point gap0.013 inches (Magneto) | 0.330 mm
Point gap0.020 inches (Distributer) | 0.508 mm
Intake valve clearance0.017 inches | 0.432 mm
Exhaust valve clearance0.017 inches | 0.432 mm
(no label)International Harvester C248
(no label)gasoline
(no label)4-cylinder
(no label)liquid-cooled vertical I-head
Displacement247.7 ci | 4.1 L
Bore/Stroke3.875x5.25 inches | 98 x 133 mm
Compression5.65:1
Rated RPM1450
Firing order1-3-4-2
Oil capacity8 qts | 7.6 L
Coolant capacity (Coolant)24 qts | 22.7 L

Transmission

Transmission
Typesliding gear
Gears5 forward and 1 reverse

Dimensions

Tires
Ag front6.00-16
Ag rear11-38
Ag front22.50x4 (steel)
Ag rear51x8 (steel)
Ag rear10-38
Ag rear12-38
Ag rear11.25-36
Dimensions
Wheelbase88.5 inches | 224 cm
Length133 inches | 337 cm
Width84 inches | 213 cm
Height78.3 inches | 198 cm
Shipping weight4858 lbs | 2203 kg
Ballasted weight6770 lbs | 3070 kg
Bar rear axle (Bar)2.75 inch diameter | 69 mm
Front tread9.125 inches | 23 cm
Rear tread52 to 88 inches | 132 to 223 cm