Compare/Farmall 400 vs Farmall Super BM

Farmall 400 vs Farmall Super BM

Verdict: Farmall 400 vs Farmall Super BM

The Farmall 400 and the Farmall Super BM are both tractors — here is how they stack up on the figures that matter. Farmall 400 leads on rated power with 45 hp against 43 hp. Farmall Super BM is the lighter machine (2,404 kg vs 2,857 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. In short: choose the Farmall 400 for outright pulling power, or the Farmall Super BM 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

45 hp

43 hp

Confidence

40%

Guide price

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Overview

Manufacturer

Farmall (a part of International Harvester)Reference

With 12-38 rear tires.Reference

liquid-cooled OHVReference

Total built

40,957Reference

1,998Reference

Original price

$3,500 (1954)Reference

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Steering

power optionalReference

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Variants

400

row-cropReference

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W-400

standardReference

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400 Hi-Clear

high-cropReference

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Super BMD

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diesel engineReference

Engine

Drawbar (claimed)

32.7 kWReference

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Belt (claimed)

36.0 kWReference

31.7 kWReference

Drawbar (tested)

35.9 kWReference

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Belt (tested)

39.0 kWReference

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Displacement

4.3 LReference

Bore/Stroke

102 x 133 mmReference

Fuel system

1.25-inch updraft carburetorReference

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Air cleaner

oil bathReference

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Compression

8.33:1Reference

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Rated RPM

1450Reference

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Idle RPM

400-1600Reference

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Firing order

1-3-4-2Reference

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Starter volts

12Reference

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Coolant capacity

27.4 LReference

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Sparkplug gap

0.584 mmReference

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Intake valve clearance

0.432 mmReference

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Exhaust valve clearance

0.432 mmReference

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Oil capacity

8.5 LReference

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Oil change

150 hReference

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Belt power (max)

39.0 kWReference

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Max power

35.9 kWReference

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Transmission

Torque AmplifierReference

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Gears

10 forward and 2 reverseReference

5 forward and 1 reverseReference

Clutch

12-inch dry discReference

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Capacities

Fuel

81.4 LReference

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Aux. fuel

3.4 LReference

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Diameter

27 cmReference

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Width

19 cmReference

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RPM

899Reference

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Speed

788.82 meters/minReference

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PTO & Hydraulics

Hydraulic system

13.7 LReference

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Type

partial power shiftReference

gearReference

Capacity

13.7 LReference

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Valves

3Reference

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Rear lift

907 kgReference

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Rear PTO

independentReference

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Rear PTO Type

540Reference

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Engine RPM

534@1450 (ind.)Reference

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Rear Type

—

optionalReference

Dimensions

Wheelbase

243 cmReference

—

Weight

2857 kgReference

2404 kgReference

Front tire

6.00-16Reference

6.00x16.00Reference

Rear tire

12-38Reference

11.00x38.00Reference

Ag front

6.00-16Reference

9.00x10.00 (single)Reference

Ag rear

12-38Reference

12.00x38.00Reference

Length

358 cmReference

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Min Width

214 cmReference

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Max Width

272 cmReference

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Height (steering wheel)

205 cmReference

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Operating weight

2857 kgReference

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Ballasted weight

4354 kgReference

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Frame Ground clearance

46 cmReference

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Clearance (front axle)

57 cmReference

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Clearance (rear axle)

66 cmReference

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Bar rear axle

69 mmReference

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Front tread

144 to 228 cmReference

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Rear tread

127 to 269 cmReference

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Farmall 400 attachments

400 Serial Number Location

400 Serial Numbers

1954

501Reference

11001Reference

1955

4732Reference

11220Reference

1956

29065Reference

11949Reference

Electrical

Ground

negative (12V)Reference

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Charging system

generatorReference

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Battery volts

12 (diesel)Reference

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Attachment overview

Test results

Belt fuel use (max)

22.0 l/hourReference

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Max pull

3022 kgReference

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Speeds

Super BM Serial Numbers

1957

—

12038Reference

1958

—

12688Reference

Final

—

12733Reference

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.