Tractor · 1939Unverified
Farmall M
Farmall M — Row-Crop tractor · 34 hp. Reference specifications; pending source verification.
Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.
Rated power
34 hp
Max power
22.8 kW
Weight
2203 kg
Hover a source tag to verify
Overview
ManufacturerFarmall (a part of International Harvester)Reference
Row-Crop tractorReference
Built in Rock Island, Illinois, USAReference
Total built270,140Reference
Original price$1,440 (1946 )Reference
Original price$2,600 (1952 )Reference
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.Reference
Two-wheel driveReference
Manual steeringReference
Mechanical contracting band brakesReference
Open operator station.Reference
Variants
MDdiesel engineReference
MVhigh-cropReference
MDVdiesel high-cropReference
AMAustralian-built M, built 1949-1954Reference
BMBritish-built MReference
W-6standard-frontReference
I-6industrialReference
Engine
International Harvester 4.1L 4-cyl distillateReference
International Harvester 4.1L 4-cyl gasolineReference
Fuel tank79.5 LReference
Aux. fuel3.8 LReference
Drawbar (claimed)18.6 kWReference
Belt (claimed)23.1 kWReference
Plows3 (14-inch)Reference
Drawbar (tested)24.7 kWReference
Belt (tested)27.3 kWReference
International HarvesterReference
distillateReference
4-cylinderReference
liquid-cooled vertical I-headReference
Displacement4.1 LReference
Bore/Stroke98 x 133 mmReference
Compression4.75:1Reference
Compression4.5:1Reference
Rated RPM1,450Reference
Firing order1-3-4-2Reference
Oil capacity7.6 LReference
Coolant capacity22.7 LReference
Sparkplug gap0.635 mmReference
Point gap0.330 mmReference
Point gap0.508 mmReference
Intake valve clearance0.432 mmReference
Exhaust valve clearance0.432 mmReference
International Harvester C248Reference
gasolineReference
Compression5.65:1Reference
Rated RPM1450Reference
Belt power (max)26.0 kWReference
Power at rated engine speed25.5 kWReference
Max power22.8 kWReference
Belt power (max)27.3 kWReference
Power at rated engine speed26.9 kWReference
Max power24.7 kWReference
Transmission
5-speed sliding gearReference
Typesliding gearReference
Gears5 forward and 1 reverseReference
PTO & Hydraulics
PTO (tested)26.9 kWReference
TypeLift-AllReference
Pressure34.5 barReference
Pressure55.2 barReference
Rear PTO Type540 (1.375)Reference
Dimensions
Wheelbase224 cmReference
Weight2203 kgReference
Front tire6.00-16Reference
Rear tire11-38Reference
Ag front6.00-16Reference
Ag rear11-38Reference
Ag front22.50x4 (steel)Reference
Ag rear51x8 (steel)Reference
Ag rear10-38Reference
Ag rear12-38Reference
Ag rear11.25-36Reference
Length337 cmReference
Width213 cmReference
Height198 cmReference
Shipping weight2203 kgReference
Ballasted weight3070 kgReference
Bar rear axle69 mmReference
Front tread23 cmReference
Rear tread132 to 223 cmReference
Farmall M attachments
front-end loaderReference
M Serial Number Location
Data plate on the left side of the engine area.Reference
M Serial Numbers
1939FBK501Reference
1940FBK7240Reference
1941FBK25371Reference
1942FBK50988Reference
1943FBK60011Reference
1944FBK67424Reference
1945FBK88085Reference
1946FBK105564Reference
1947FBK122823Reference
1948FBK151708Reference
1949FBK180514Reference
1950FBK213579Reference
1951FBK247518Reference
1952FBK290923Reference
FinalFBK298218Reference
FAQ: How to read a serial number table.Reference
Test results
NTTL 327: distillate 5-speed 2WDReference
NTTL 328: gasoline 5-speed 2WDReference
Distillate 5-speed 2WDSeptember 5 - 16, 1939Link: Nebraska Tractor Test 327 fileReference
Belt fuel use (max)10.6 l/hourReference
PTO performanceReference
Fuel use10.2 l/hourReference
Drawbar performanceReference
Gear 2 used for power test.Reference
Max pull1979 kgReference
Gear 1 used for pull test.Reference
Gasoline 5-speed 2WDSeptember 11 - 21, 1939Link: Nebraska Tractor Test 328 fileReference
Belt fuel use (max)11.4 l/hourReference
Fuel use11.4 l/hourReference
Max pull1935 kgReference
Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.