International Harvester W-400

International Harvester W-400 tractor photo
1955 - 1956
Super W-6
Manufacturer:International Harvester
Total built:2,070 (gas/LP)
 1,118 (diesel)
Original price:$3,400 (1956)
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.
400:Row-crop (Farmall) version
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 ...
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
Fuel tank:18 gal
68.1 L (gas/diesel)
 31 gal
117.3 L (LP)
Engine details ...
Chassis:4x2 2WD
Steering:hydraulic power
Brakes:mechanical disc
Cab:Open operator station.
Transmissions:5-speed sliding gear
 10-speed partial power shift
Transmission details ...
Power Take-off (PTO)
Rear PTO:independent
Rear RPM:540
Dimensions & Tires
Weight:6158 to 6550 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


how to read serial numbers...

Page information
Last update:February 23, 2017
Copyright:Copyright 2021 TractorData LLC
©2000-2021 -®. Notice: Every attempt is made to ensure the data listed is accurate. However, differences between sources, incomplete listings, errors, and data entry mistakes do occur. Consult official literature from the manufacturer before attempting any service or repair.