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Years in Production / 1939–1954

Farmall

M

Explore the specifications, hardware, and original references for the Farmall M.

Farmall M tractor VA2 — Acroterion, CC BY-SA 4.0. Resized; converted to WebP. · Acroterion · CC BY-SA 4.0 commons.wikimedia.org source ↗

38hp

Engine estimate · from PTO

2WD Only

Drive

1939–1954

Production years

Farmall

Manufacturer

M / 01

At a glance

Production

Row-Crop tractor

Built in Rock Island, Illinois, USA

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)
Total Built
270,140
Original Price
$1,440 (1946 )
Original Price
$2,600 (1952 )

Hydraulics

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

Pto

Rear Type
540 (1.375)

Serial Numbers

FAQ: How to read a serial number table.

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

Mechanical

Two-wheel drive

Manual steering

Mechanical contracting band brakes

Open operator station.

M / 02

Under the hood

Engine Detail (Option 1)

International Harvester

distillate

4-cylinder

liquid-cooled vertical I-head

Displacement
247.7 ci4.1 L
Bore Stroke
3.875x5.25 inches98 x 133 mm
Compression Ratio
4.75:1
Compression Ratio
4.5:1 *Kerosene engine
Rated Rpm
1,450
Firing Order
1-3-4-2
Oil Capacity
8 qts7.6 L
Coolant Capacity
24 qts22.7 L
Sparkplug Gap
0.025 inches0.635 mm
Point Gap
0.013 inches (Magneto)0.330 mm
Point Gap
0.020 inches (Distributer)0.508 mm
Intake Valve Clearance
0.017 inches*Hot0.432 mm
Exhaust Valve Clearance
0.017 inches*Hot0.432 mm
Cylinders
4
Cooling
liquid-cooled vertical I-head

Engine Detail (Option 2)

International Harvester C248

gasoline

4-cylinder

liquid-cooled vertical I-head

Displacement
247.7 ci4.1 L
Bore Stroke
3.875x5.25 inches98 x 133 mm
Compression Ratio
5.65:1
Rated Rpm
1450
Firing Order
1-3-4-2
Oil Capacity
8 qts7.6 L
Coolant Capacity
24 qts22.7 L
Fuel Type
gasoline
Cylinders
4
Cooling
liquid-cooled vertical I-head

Engine Options

International Harvester 4.1L 4-cyl distillate

International Harvester 4.1L 4-cyl gasoline

Fuel Tank
21 gal79.5 L
Aux Fuel
1 gal3.8 L

M / 03

Gears & controls

Transmission

Transmission Type
sliding gear
Gears
5 forward and 1 reverse

M / 04

Size. Stance. Footprint.

Dimensions

Length
133 in337 cm
Width
84 in213 cm
Height
78.3 in198 cm
Wheelbase
88.5 in224 cm
Front tread
9.13 in23 cm
Rear tread
52 in132 cm

Dimensions And Tires

Wheelbase
88.5 inches224 cm
Weight
4858 lbs2203 kg
Front Tire
6.00-16
Rear Tire
11-38

Tires And Tracks

Front Ag
6.00-16
Front Ag
22.50x4 (steel)
Rear Ag
11-38
Rear Ag
51x8 (steel)
Rear Ag
10-38
Rear Ag
12-38
Rear Ag
11.25-36

M / 05

Tractor Photos

Farmall M tractor VA2 — Acroterion, CC BY-SA 4.0. Resized; converted to WebP. · Acroterion · CC BY-SA 4.0 commons.wikimedia.org source ↗

See it in action

Videos

Watch Farmall M videos from their original YouTube creators.

TOP 5 Farmall M Variations Collectors Want! - International Harvester Company

Video by Classic Tractor Fever

Watch on YouTube ↗

M / 07

Tests (NTTL)

Nebraska Tractor Test 327

Distillate 5-speed 2WDSeptember 5 - 16, 1939

PTO performance

Drawbar performance

Gear 2 used for power test.

Gear 1 used for pull test.

Id
327
Belt Power Max
34.82 hp26.0 kW
Belt Fuel Use Max
2.8 gal/hour10.6 l/hour
Power At Rated Engine Speed
34.16 hp25.5 kW
Fuel Use
2.7 gal/hour10.2 l/hour
Max Power
30.62 hp22.8 kW
Max Pull
4,365 lbs1979 kg

Nebraska Tractor Test 328

Gasoline 5-speed 2WDSeptember 11 - 21, 1939

PTO performance

Drawbar performance

Gear 1 used for pull test.

Id
328
Belt Power Max
36.66 hp27.3 kW
Belt Fuel Use Max
3.0 gal/hour11.4 l/hour
Power At Rated Engine Speed
36.07 hp26.9 kW
Fuel Use
3.0 gal/hour11.4 l/hour
Max Power
33.1 hp24.7 kW
Max Pull
4,266 lbs1935 kg

Farmall M · photo 1 / 1

Farmall M tractor VA2

Farmall M tractor VA2 — Acroterion, CC BY-SA 4.0. Resized; converted to WebP. · Acroterion · CC BY-SA 4.0 commons.wikimedia.org source ↗