Compare/Farmall 400 vs Farmall 504

Farmall 400 vs Farmall 504

Verdict: Farmall 400 vs Farmall 504

The Farmall 400 and the Farmall 504 are both tractors — here is how they stack up on the figures that matter. Farmall 504 leads on rated power with 46 hp against 45 hp. Farmall 504 is the lighter machine (2,463 kg vs 2,857 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Farmall 504 is the newer design (1961 vs 1954). In short: choose the Farmall 504 for outright pulling power, or the Farmall 400 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

46 hp

Confidence

40%

Guide price

—

Overview

Manufacturer

Farmall (a part of International Harvester)Reference

With 12-38 rear tires.Reference

LP gas Torque Amplifier 2WDMay 17 - June 9, 1962Link: Nebraska Tractor Test 820 fileReference

Total built

40,957Reference

—

Original price

$3,500 (1954)Reference

—

Steering

power optionalReference

powerReference

Variants

400

row-cropReference

—

W-400

standardReference

—

400 Hi-Clear

high-cropReference

—

Farmall 504

—

row-cropReference

IH 504

—

utilityReference

504HC

—

high-clearanceReference

IH 2504

—

industrialReference

Engine

Drawbar (claimed)

32.7 kWReference

30.6 kWReference

Belt (claimed)

36.0 kWReference

—

Drawbar (tested)

35.9 kWReference

30.1 kWReference

Belt (tested)

39.0 kWReference

—

Displacement

4.3 LReference

2.5 LReference

Bore/Stroke

102 x 133 mmReference

86 x 108 mmReference

Fuel system

1.25-inch updraft carburetorReference

—

Air cleaner

oil bathReference

Compression

8.33:1Reference

7.70:1Reference

Rated RPM

1450Reference

2200Reference

Idle RPM

400-1600Reference

900-2200Reference

Firing order

1-3-4-2Reference

Starter volts

12Reference

Coolant capacity

27.4 LReference

15.1 LReference

Sparkplug gap

0.584 mmReference

—

Intake valve clearance

0.432 mmReference

—

Exhaust valve clearance

0.432 mmReference

—

Oil capacity

8.5 LReference

4.7 LReference

Oil change

150 hReference

—

Belt power (max)

39.0 kWReference

—

Max power

35.9 kWReference

30.0 kWReference

Plows

—

3-4Reference

Starter

—

electricReference

Starter type

—

electricReference

Power at rated engine speed

—

33.1 kWReference

Transmission

Torque AmplifierReference

Gears

10 forward and 2 reverseReference

Clutch

12-inch dry discReference

dry discReference

Capacities

Fuel

81.4 LReference

87.1 LReference

Aux. fuel

3.4 LReference

—

Diameter

27 cmReference

—

Width

19 cmReference

—

RPM

899Reference

—

Speed

788.82 meters/minReference

—

PTO & Hydraulics

Hydraulic system

13.7 LReference

49.2 LReference

Type

partial power shiftReference

two-speed power shiftReference

Capacity

13.7 LReference

49.2 LReference

Valves

3Reference

—

Rear lift

907 kgReference

—

Rear PTO

independentReference

—

Rear PTO Type

540Reference

Engine RPM

534@1450 (ind.)Reference

—

PTO (claimed)

—

34.3 kWReference

PTO (tested)

—

34.5 kWReference

Pump flow

—

45.4 lpmReference

Total flow

—

71.9 lpmReference

Rear Type

—

IIReference

Control

—

position and draft controlReference

Power at rated PTO speed

—

30.7 kWReference

Dimensions

Wheelbase

243 cmReference

Weight

2857 kgReference

2463 kgReference

Front tire

6.00-16Reference

Rear tire

12-38Reference

12.4-38Reference

Ag front

6.00-16Reference

Ag rear

12-38Reference

12.4-38Reference

Length

358 cmReference

Min Width

214 cmReference

—

Max Width

272 cmReference

—

Height (steering wheel)

205 cmReference

200 cmReference

Operating weight

2857 kgReference

2463 kgReference

Ballasted weight

4354 kgReference

3662 kgReference

Frame Ground clearance

46 cmReference

—

Clearance (front axle)

57 cmReference

—

Clearance (rear axle)

66 cmReference

—

Bar rear axle

69 mmReference

—

Front tread

144 to 228 cmReference

—

Rear tread

127 to 269 cmReference

—

Farmall 400 attachments

400 Serial Number Location

400 Serial Numbers

1954

501Reference

—

1955

4732Reference

—

1956

29065Reference

—

Electrical

Ground

negative (12V)Reference

—

Charging system

generatorReference

—

Battery volts

12 (diesel)Reference

—

Attachment overview

Test results

Belt fuel use (max)

22.0 l/hourReference

—

Max pull

3022 kgReference

2802 kgReference

Fuel use

—

18.9 l/hourReference

Speeds

Farmall 504 attachments

504 Serial Number Location

504 Serial Numbers

1961

—

501Reference

1962

—

810Reference

1963

—

7000Reference

1964

—

7732Reference

1965

—

10696Reference

1966

—

13596Reference

1967

—

15113Reference

1968

—

16115Reference

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.