Farmall M Technical Specifications
Farmall M is a Row-Crop tractor that was produced by the John Deere between 1939 – 1954.
Below you will find detailed technical specifications for Farmall M covering engine types, horsepower ratings, weight, height, fuel type and tank volume, oil capacity and type, hydraulic system diagram, wiring diagram, battery specs, etc.
Farmall M Production
| Manufacturer: | |
| Manufacturer | Farmall (a part of International Harvester) |
| Row-Crop tractor | |
| Built in Rock Island, Illinois, USA | |
| Total built | 270,140 |
| Original price | $1,440 (1946 ) |
| $2,600 (1952 ) | |
| 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: | 33.1 hp 24.7 kW |
| PTO (tested) | 36.07 hp 26.9 kW |
| Belt (tested) | 36.66 hp 27.3 kW |
Farmall M Mechanical
| Two-wheel drive | |
| Manual steering | |
| Mechanical contracting band brakes | |
| Open operator station. |
Hydraulics
| Type | Lift-All *Optional. Transmission-driven pump. |
| Pressure | 500 psi (early) 34.5 bar |
| 800 psi (late) 55.2 bar |
Power Take-off (PTO)
| Rear RPM | 540 (1.375) |
Title serial numbers
| 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 |
FAQ: How to read a serial number table. | |
What year is my Farmall M? Serial Number Decoder
The serial number list shows the first tractor built in each year. The other tractors for that year will have successively higher numbers. Your serial number should be between two of the stated numbers.
The list only includes the numbers of the first tractors produced in each year. Your serial should be somewhere between two numbers.Unless you happen to be the first person to own a tractor, your number will not appear on the list.
Farmall M Engine detail
| Engine Detail | |
| International Harvester | |
| distillate | |
| 4-cylinder | |
| liquid-cooled vertical I-head | |
| Displacement | 247.7 ci 4.1 L |
| Bore/Stroke | 3.875×5.25 inches 98 x 133 mm |
| Compression | 4.75:1 |
| 4.5:1 *Kerosene engine | |
| Rated RPM | 1,450 |
| Firing order | 1-3-4-2 |
| Oil capacity | 8 qts 7.6 L |
| Coolant capacity | 24 qts 22.7 L |
| Sparkplug gap | 0.025 inches 0.635 mm |
| Point gap | 0.013 inches 0.330 mm |
| Intake valve clearance | 0.017 inches*Hot 0.432 mm |
| Exhaust valve clearance | 0.017 inches*Hot 0.432 mm |
| Engine Oil | |
| Type | sliding gear |
| Gears | 5 forward and 1 reverse |
Farmall M Dimensions
| Length | 133 inches 337 cm |
| Width | 84 inches 213 cm |
| Height | 78.3 inches 198 cm |
| Shipping weight | 4858 lbs 2203 kg |
| Ballasted weight | 6770 lbs 3070 kg |
Farmall M Tests
| Nebraska Tractor Test 327 | |||
| Nebraska Tractor Test 327 | |
| Distillate 5-speed 2WD September 5 – 16, 1939 Link: Nebraska Tractor Test 327 file | |
| Belt power (max) | 34.82 hp 26.0 kW |
| Belt fuel use (max) | 2.8 gal/hour 10.6 l/hour |
| PTO performance | |
| Power at rated engine speed | 34.16 hp 25.5 kW |
| Fuel use | 2.7 gal/hour 10.2 l/hour |
| Drawbar performance | |
| Max power | 30.62 hp 22.8 kW |
| Gear 2 used for power test. | |
| Max pull | 4,365 lbs 1979 kg |
| Gear 1 used for pull test. | |
| Nebraska Tractor Test 328 | |||
| Nebraska Tractor Test 328 | |
| Gasoline 5-speed 2WD September 11 – 21, 1939 Link: Nebraska Tractor Test 328 file | |
| Belt power (max) | 36.66 hp 27.3 kW |
| Belt fuel use (max) | 3.0 gal/hour 11.4 l/hour |
| PTO performance | |
| Power at rated engine speed | 36.07 hp 26.9 kW |
| Fuel use | 3.0 gal/hour 11.4 l/hour |
| Drawbar performance | |
| Max power | 33.1 hp 24.7 kW |
| Max pull | 4,266 lbs 1935 kg |
| Gear 1 used for pull test. | |
FAQ
Is Farmall M a good tractor?
The Farmall M is one of the great tractors in the Farmall (a part of International Harvester) stable, and it has earned Farmall (a part of International Harvester) a fantastic reputation.
How much oil does a Farmall M take?
Check out the Farmall M oil capacity and oil type in the engine specs section as it may vary across the engines. Keep in mind, that older models might have their oil capacity increased over time. You may compare between the early and late oil capacity.
Do tractors have VIN numbers?
Every tractor has a VIN number. The number is usually engraved below the driver’s seat. Tractor manufacturers put the number in different places on the tractor body.
What was the last year Farmall (a part of International Harvester) made the M?
The Farmall M was an agricultural tractor model made from 1939 – 1954
How much horsepower is a Farmall M?
The M engine tested at 33.1 hp
24.7 kW drawbar and 36.07 hp
26.9 kW kW PTO horsepower.
How much does a Farmall M tractor weight?
Depending on the engine type, the Farmall M weight ranges from 4858 lbs
2203 kg .
How much can a Farmall M Pull?
The max pulling capacity of the Farmall M tractors starts at 4,365 lbs
1979 kg but may be slightly higher depending on the trim.