Compare/Farmall B vs Farmall F-12

Farmall B vs Farmall F-12

Verdict: Farmall B vs Farmall F-12

The Farmall B and the Farmall F-12 are both tractors — here is how they stack up on the figures that matter. Farmall B leads on rated power with 17 hp against 10 hp. Farmall B is the lighter machine (1,088 kg vs 1,224 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Farmall F-12 holds more fuel (49.2 L vs 37.9 L) for longer stints between fills. Farmall B is the newer design (1939 vs 1932). In short: choose the Farmall B for outright pulling power, or the Farmall F-12 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

Tune the fit score

Tell us about your operation

Acreage600 acBudgetMain crop / use

Fit & specs

Farmall

Fit score

Best match

Clear

Farmall

Fit score

Best match

Clear

Rated power

17 hp

10 hp

Confidence

40%

Guide price

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Overview

Manufacturer

Farmall (a part of International Harvester)Reference

Distillate 4-speed 2WDOctober 9 - 13, 1939Link: Nebraska Tractor Test 332 fileReference

Kerosene 3-speed 2WDNovember 1 - 16, 1933Link: Nebraska Tractor Test 220 fileReference

Factories

Louisville, Kentucky, USAReference

Neuss, GermanyReference

Total built

75,241Reference

2,848 GermanyReference

Original price

$770Reference

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Variants

full widthReference

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narrow treadReference

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F-12-G

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German-builtReference

F-12-G4

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German-built, four-speedReference

W-12

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McCormick standard-frontReference

Engine

Fuel tank

37.9 LReference

49.2 LReference

Aux. fuel

3.8 LReference

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Drawbar (claimed)

12.9 kWReference

7.5 kWReference

Belt (claimed)

14.3 kWReference

9.7 kWReference

Plows

1Reference

Drawbar (tested)

12.1 kWReference

9.2 kWReference

Belt (tested)

13.7 kWReference

12.1 kWReference

Displacement

1.9 LReference

Bore/Stroke

76 x 102 mmReference

Compression

5.33:1Reference

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Rated RPM

1400Reference

Idle RPM

900-1400Reference

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Firing order

1-3-4-2Reference

Starter

electricReference

—

Starter volts

6Reference

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Oil capacity

4.7 LReference

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Coolant capacity

12.8 LReference

13.2 LReference

Sparkplug gap

0.635 mmReference

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Point gap

0.508 mmReference

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Intake valve clearance

0.356 mmReference

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Exhaust valve clearance

0.356 mmReference

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Belt power (max)

11.9 kWReference

10.9 kWReference

Max power

11.0 kWReference

8.8 kWReference

Air cleaner

—

oil bathReference

Transmission

International HarvesterReference

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Gears

4 forward and 1 reverseReference

Clutch

—

dry discReference

PTO & Hydraulics

Type

gearReference

unsynchronized gearReference

Rear PTO

transmissionReference

—

Rear PTO Type

540 (1.125)Reference

Dimensions

Weight

1088 kgReference

1224 kgReference

Front tire

6.00-12Reference

23x6Reference

Rear tire

8-24Reference

54x6Reference

Ag front

7.50-10Reference

23x6 (steel)Reference

Ag rear

5-30Reference

54x6 (steel)Reference

Length

274 cmReference

318 cmReference

Height

165 cmReference

158 cmReference

Rear tread

203/213/223/233 cmReference

111 to 200 cmReference

Wheelbase

—

193 cmReference

Shipping weight

—

1224 kgReference

B Serial Number Location

B Serial Numbers

1939

FAB3675Reference

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1940

6744Reference

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1941

41500Reference

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1942

80739Reference

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1944

96390Reference

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1945

113218Reference

—

1946

146700Reference

—

1947

200001 (Louisville)Reference

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Capacities

Diameter

21 cmReference

31 cmReference

Width

201 cmReference

188 cmReference

RPM

1157Reference

800Reference

Speed

784.56 meters/minReference

789.74 meters/minReference

Electrical

Ground

positiveReference

—

Charging system

generatorReference

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Battery volts

6Reference

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Test results

Belt fuel use (max)

5.3 l/hourReference

5.7 l/hourReference

Max pull

1117 kgReference

822 kgReference

Fuel use

4.5 l/hourReference

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F-12 Serial Numbers

1932

—

501 (Chicago)Reference

1933

—

526 (Chicago)Reference

1934

—

4881 (Chicago)Reference

1935

—

17411 (Chicago)Reference

1936

—

48660 (Chicago)Reference

1937

—

81837 (Chicago)Reference

1938

—

NT101 (Neuss)Reference

Location:

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Serial number plate ahead of the gear shift, below the steering column.Reference

Final

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123942 (Chicago)Reference

Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.