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Farmall M

Farmall M tractor photo
1939 - 1954
Row-Crop tractor
Next model:Farmall Super M
Series back:Farmall H

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.


Manufacturer:Farmall (a part of International Harvester)
Factory:Rock Island, Illinois, USA
Total built:270,140
Original price (USD)
   $2,400 (1952 )


MD:diesel engine
MDV:diesel high-crop
AM:Australian-built M, built 1949-1954
BM:British-built M

Farmall M Engines:

   International Harvester 4.1L 4-cyl distillate
   International Harvester 4.1L 4-cyl gasoline
full engine details ...


Fuel:21 gal [79.5 L]
Aux. fuel:1 gal [3.8 L]

Power Take-off (PTO):

Rear RPM:540 (1.375)

Dimensions & Tires:

Weight:4858 lbs [2203 kg]
Front tire:6.00-16
Rear tire:11-38
full dimensions and tires ...

M Serial Numbers:

Location:Data plate on the left side of the engine area.
photo of M serial number

1939: FBK501
1940: FBK7240
1941: FBK25371
1942: FBK50988
1943: FBK60011
1944: FBK67424
1945: FBK88085
1946: FBK105564
1947: FBK122823
1948: FBK151708
1949: FBK180514
1950: FBK213579
1951: FBK247518
1952: FBK290923
Final: FBK298218

how to read serial numbers...


Farmall M Power:

Drawbar (claimed):25 hp [18.6 kW]
Belt (claimed):31-33 hp [23.1 kW]
Plows:3 (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]
power test details ...


Chassis:4x2 2WD
Brakes:mechanical contracting band
Cab:Open operator station.


Type:Lift-All*Optional. Transmission-driven pump.
Pressure:500 psi [34.5 bar] (early)
 800 psi [55.2 bar] (late)

Page information:

Last update:September 20, 2018
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