Tractor & Construction Plant Wiki
McCormick Farmall 100 1956.jpg
McCormick Farmall 100, 1956, at Tulare, California antique tractor show
Model history
Model introduced 1954
Model discontinued 1956
Model status Discontinued
No. produced 19,075
Preceded by Farmall Super A-1
Superseded by Farmall 130
Engine Specification
Engine make International
Engine model C-123
Fuel type gasoline
Power hp 20 belt, 18 drawbar
Governed rpm 1400
Displacement cu in /(litre) 123 ci
No. of Cylinders 4
Bore in (mm) 3.125"
Stroke in (mm) 4"
Cooling system water
Naturally aspirated, Turbo or Supercharged NA
Transmission Details
Transmission type sliding gear
Gearbox make International
Forward 4
Reverse 1
Drive 2-WD
General Data
Linkage Category drawbar
Tyre Sizes (std/options)
Front 5.00-15 4-ply
Rear 9-24 4-ply
Tractor Dimensions
Length (inches/metres) 107"
Width (inches/meters) 56"
Height (inches/meters) 66"
Weight (nominal) lb/kg 2600 lb
Turning circle (nominal) inches/meters 17 ft
Wheelbase 71"
Other info
Factories Tractor Works, Chicago, Illinois, USA
Louisville, Kentucky, USA
Plow rating 1-16" or 2-12"
Nebraska Tests No. 537
Approximate Cost new in (year) $1800 (1956)
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The Farmall 100 was built by International Harvester from 1954 to 1956 in Chicago, Illinois, USA and Louisville, Kentucky, USA.

Model History

For Company history see
Main article: International Harvester

The Farmall 100 replaced the Super A-1, using a slightly restyled grille. The engine was still the 123 ci 4-cylinder but an increase in the compression ratio raised the belt hp rating to 20.

Tractor Comparison

Other makes and models competing most closely with the Farmall 100 were the Allis-Chalmers B, Case VAS, and Massey-Harris Pacer and the heavier and more powerful Minneapolis-Moline BG. Other small tractors competing with the Farmall for some uses were the standard-tread John Deere 40 and Oliver 66. During 1956 International Harvester replaced the Farmall 100 with the more powerful Farmall 130.

Make & model Pto hp Weight (lb) Price ($)
McCormick Farmall 100 20 2600 1800 (1956)
Allis-Chalmers B 22 2060 1525 (1957)
Case VAS 21 2950 1564 (1952)
John Deere 40 Standard 25 2950 1521 (1954)
Massey-Harris Pacer 19 1915 1418 (1957)
Minneapolis-Moline BG 28 2880 1710 (1957)
Oliver 66 Standard 24 3193 2430 (1954)
McCormick Farmall 130 22 2650 1950 (1958)

Note: Some specifications and prices for comparison tables from [1] and [2]


Factory locations

  • Tractor Works, Chicago, Illinois, USA
  • Louisville Works, Louisville, Kentucky, USA


See Infobox for basic details

  • 123 ci 4-cylinder gasoline engine
  • 4-speed transmission
  • Adjustable front axle
  • Electric starting and lights
  • Touch Control hydraulics
  • 2-point Fast Hitch implement attachment
  • Standard tires
    • Front: 5.00-15 4-ply
    • Rear: 9-24 4-ply

Variations and Options

  • Non-adjustable front axle
  • Belt pulley
  • Pto
  • Optional tires
    • Front: 4.00-15 or 6.00-16 4-ply
    • Rear: 10-24 or 11-24 4-ply

Serial Numbers Information

Year Serial no. run
Serial no. run
Number Built Notes
1954 501 1719 1219 Number built calculated from serial number range
1955 1720 12894 8771
1956 12895 18940 8585
Total built 19075


No detailed information of any of these tractors in preservation is currently available on here.

Do you know of any examples to list ?

List of Preserved Farmall 100 tractors
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Make + Model No. Reg No.
(if known)
Serial No. Build-Date Engine-Type/Make Owner
(if known)
Photo Were seen/Featured in Other info
Farmall 100 - 5334J 1955 C123 John Middleton IMG 1426.JPG Vanessa, Ontario CANADA Purchased from a relative November 8, 2008, Third owner, looking forward to a complete restoration one day
Farmall 100 7028J 1955 C123 Stephen Sawzin Tractor in Snow Jan 2011jpg.JPG Clinton County Ohio Corn Festival September 2009,2010 Fitted with a front plow adapted from Farmall Cub. Added step for operator entry.

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See also

Collection related info
  • Shows and Meets - events featuring tractors and other machinery
  • Clubs Listing - List of clubs including various tractor marques
  • Collections - list of private collections with tractors (add yours)
  • Museums - includes museums featuring tractors (please add missing ones)

References / Sources

  1. Hall, Mike, Ed., The Official Tractor Blue Book 2010, Price Digests, Overland Park, Kansas, 2009
  2. Larsen, Lester, “Farm Tractors 1950-1975”, American Society of Agricultural Engineers, St. Joseph, Michigan, 1981
  3. 3.0 3.1 Heartland Guides Division, Hot Line Antique Tractor Guide, Vol. X, Heartland Communications Group, Fort Dodge, Iowa, 2010

External Links