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Farmall 400 Tractor Review & Specification

The Farmall 400 is a reliable addition to the row crop tractor model. It was launched by International Harvester in 1954. This 2WD row crop tractor was in production from 1954 to 1956 at the Rock Island factory, Illinois, the USA. And more than 40,000 tractors were manufactured in 3 years. This tractor model is a similar version of its previous model Farmall Super M-TA. The Farmall 400 was the new brand name after International Harvester switched its product designation from letter to digit.

Along with the name change, the new version came with some reformation in its features. The engine remained the same. It is an International Harvester 4-cylinder 4.3L (264.0 cu·in) diesel/gasoline/LP-gas engine. The Farmall 400 came with live PTO, live hydraulics, a torque amplifier, and a 2-point fast hitch.

The 2WD tractor is a reliable farm asset having an unsynchronized transmission. This is clubbed with power shift gears, two clutches, and manual disc brakes. The advanced transmission system allows you to change speed under load. It also includes an open operator station Cab to support the driver. If you are interested to know more about the Farmall 400 tractor, this article provides all the information. Here you will find its specifications, features, price, etc.

Farmall 400 Tractor Review

General Specifications of Farmall 400 Tractor

ModelFarmall 400
Weight (operating)6,300 lbs [2857 kg]
Weight (Ballastes)9,600 lbs [4354 kg]
Length141.125 inches [358 cm]
Width (min)84.5 inches [214 cm]
Width (max)107.25 inches [272 cm]
Height (hood)80.75 inches [205 cm]
Wheelbase95.75 inches [243 cm]
Frame Ground clearance81.75 inches [207 cm]18.5 inches [46 cm]
Clearance (front axle)22.5 inches [57 cm]
Clearance (rear axle)26.25 inches [66 cm]
Front Tread8.375/12.25 inches (tricycle) [21/31 cm]57 to 90 inches [144 to 228 cm]
Rear Tread50 to 94 inches [127 to 238 cm] 50 to 106 inches (long axle) [127 to 269 cm] (long axle)
EngineInternational Harvester C264 gasoline 4-cylinder liquid-cooled vertical I-head 264 ci [4.3 L] International Harvester diesel 4-cylinder liquid-cooled vertical I-head 264 ci [4.3 L] International Harvester LP gas 4-cylinder liquid-cooled vertical I-head 264 ci [4.3 L]
Air cleanerOil bath
Oil capacity4.2 qts (4.0 L)
Bore/Stroke4.00×5.25 inches [102 x 133 mm]
Fuel system1.25-inch updraft carburetor
Compression ratio6.3:1(Gasoline) 16.5:1(Diesel) 8.33:1(Gas)
Rated RPM1450
Idle RPM400 - 1600
Firing Order1-3-4-2
Starting Volt6
Oil change150 h
Coolant capacity26 qts [24.6 L] (Gasoline) 29 qts [27.4 L] (Diesel) 26 qts [24.6 L] (Gas)
Oil capacity8 qts [7.6 L] (Gasoline) 9 qts [8.5 L] (Diesel)
Spark Plug gap0.023 inches [0.584 mm]
Intake valve clearance0.017 inches [0.432 mm] (hot)
Exhaust valve clearance0.017 inches [0.432 mm] (hot)
Chassis4×2 2WD
SteeringManual, Power (optional)
BrakesManual disc
CabOpen operator station.
Hydraulics TypeHydra-Touch
Capacity3.5 gal [13.2 L] 3.63 gal [13.7 L] (power steering)
TransmissionTorque Amplifier
Transmission typePartial power shift
Gears10 forward and 2 reverse
Clutch12-inch dry disc
Fuel capacity21.5 gal [81.4 L]
Aux. fuel capacity0.9 gal [3.4 L]
Rear hitch typeIH Fast Hitch (optional)
Rear lift2,000 lbs [907 kg]
Belt pulley diameter11 inches [27 cm]
Width7.5 inches [19 cm]
RPM 899
Speed2,588 ft/min [788.82 meters/min]
Rear PTOTransmission, Independent(optional)
Rear RPM540
Drawbar (claimed)37 hp [27.6 kW]
PTO (claimed)45 hp [33.6 kW]
Drawbar (tested)48.12 hp [35.9 kW]
Belt (tested)52.36 hp [39.0 kW]
Electrical GroundPositive (6V) Negative (12V)
Charging systemGenerator
Volt6 (gas) 12 (diesel)
Ag front6.00-16
Ag rear12-38

Features Of Farmall 400 Tractor

The quality of a tractor is considered with respect to its features. The Farmall 400 comes with great features and is a good quality tractor. The 2WD row-crop tractor was developed by the famous brand International Harvester. Below you can check the key features of the Farmall 400 model tractor.


The Farmall 400 tractor uses an International Harvester 4.3L 4-cyl gasoline, diesel, or LP gas engine. All are 264 ci liquid-cooled vertical I-head and naturally aspirated engines. They are tested at 48.12 hp [35.9 kW] drawbars and 52.36 hp [39.0 kW] belt horsepower.

The bore/stroke of the cylinder is 4.00×5.25 inches [102 x 133 mm]. And the compression ratio rating is 6.3:1(Gasoline), 16.5:1(Diesel), and 8.33:1(Gas). The International Harvester engine is rated at 1,450 RPM and includes a water cooling system. So you no longer need to worry about overheating the engine.


The Farmall 400 has a torque amplifier partial power shift transmission system in the two-wheel drive. It provides a gearbox with 10 forward and 2 reverse speeds. The tractor has a 12-inch dry disc clutch and an optional IH Fast Hitch. Its highest speed is 788.82 meters/min. The advanced unsynchronized transmission system allows you to change speed under load. And the torque amplifier adds an extra layer of power. This makes the Farmall 400 one of the most popular tractors in its class.

Other Features

One of the best features of the Farmall 400 model is its “Touch-Control ” hydraulics system. You can easily raise and lower the rear hitch of the tractor with a single lever. The tractor provides a front axle that is adjustable according to your need. Its 4-ply rated rubber tires help easy movement. The power take-off system of the Farmall 400 model provides a speed of 540 RPM. It also offers a universal mounting frame which is useful for fitting front-mounted implements. There is also a reversible drawbar that fits rear-mounted or pull-type attachments.

Pros Of Farmall 400 Tractor

  • The tractors have a reliable 4.3L 4 cylinder International Harvester engine available in gasoline, diesel, and LP gas version.
  • It includes an open operator station for easy and convenient operation.
  • Farmall 400 offers a torque amplifier partial power shift transmission system.
  • Its “Touch-Control” hydraulics system enables easy lifting of the rear hitch.
  • The gearbox system of the tractor has 10 forward and 2 reverse speeds.

Cons Of Farmall 400 Tractor

  • The disk brakes sometimes create a problem. You have to keep them adjusted up at all times.

Price Of Farmall 400 Tractor

The original price of a 1954 manufactured Farmall 400 tractor was USD 3500. The price of a used Farmall 400 tractor has a wide range depending on the condition of the tractor and location.

Manufacturing Year

The serial number plate of the Farmall 400 tractor is located on the back of the tractor. You can refer to the below chart of serial numbers with respect to their manufacturing year.

1954: 501

1955: 4732

1956: 29065


Farmall 400 Tractor

Farmall 400 is a popular row crop tractor with a powerful engine. It offers a “Touch-Control” hydraulics system and an advanced transmission system. In this article, you will find all kinds of information about this tractor. Hopefully, it will provide you with the correct input to make the right decision about the Farmall 400.

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