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International Harvester W-400

International Harvester W-400 tractor photo
1955 - 1956
Previous model:McCormick-Deering Super W-6
Next model:International Harvester W-450

The International W-400 started as the International 400. In June of 1955 a decision was made to rename it the W-400, bringing the name closer to the "W" series McCormick tractors it replaced.


Manufacturer:International Harvester
Total built:2,070 (gas/LP)
 1,118 (diesel)
Original price (USD):$3,400 (1956)


400:Row-crop (Farmall) version

International Harvester W-400 Engines:

   International Harvester 4.3L 4-cyl gasoline
   International Harvester 4.3L 4-cyl diesel
   International Harvester 4.3L 4-cyl LP gas
full engine details ...


Fuel:18 gal [68.1 L] (gas/diesel)
 31 gal [117.3 L] (LP)

Power Take-off (PTO):

Rear PTO:independent
Rear RPM:540

Dimensions & Tires:

Weight:6158 to 10453 pounds
Front tire:6.50-18
Rear tire:15.00-30
full dimensions and tires ...

W-400 Serial Numbers:

Location:Serial plate on the clutch housing, left side of tractor.
photo of W-400 serial number

1954: 501
1955: 510
1956: 2187
Final: 3858

how to read serial numbers...


International Harvester W-400 Power:

Drawbar (claimed):43.8 hp [32.7 kW]
PTO (claimed):48.5 hp [36.2 kW]
Drawbar (tested):47.30 hp [35.3 kW]
Belt (tested):51.94 hp [38.7 kW]
power test details ...


Chassis:4x2 2WD
Steering:hydraulic power
Brakes:mechanical disc
Cab:Open operator station.


Volts:6 gas
 12 LP/diesel

Page information:

Last update:February 23, 2017
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