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International Harvester W-400

International Harvester W-400 tractor
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The International Harvester 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. It was produced from 1955 to 1956 with a total of 2,070 gas/LP and 1,118 diesel units built. The tractor features a 4.3L 4-cylinder engine available in gasoline, diesel, and LP gas versions, with power ratings around 53.9 hp estimated. It has a 5-speed sliding gear transmission or a 10-speed partial power shift with a torque amplifier. The W-400 is a two-wheel drive tractor with hydraulic power steering and mechanical disc brakes, and an open operator station. It has an independent rear PTO with a 540 rpm type. Dimensions include a length of 130 inches, width of 76 inches, and height of 93.5 inches, with operating weights ranging from 6,158 to 6,550 pounds depending on the engine type.
International HarvesterW-400tractorspecificationsenginetransmissionpowerdimensionsfarm tractor
Power53 hp[P]
Founded1955 - 1956
ModelW-400

Technical Specifications

Detailed specifications and technical data for International Harvester W-400

Power

Belt (tested):51.94 hp (38.7 kW)
PTO (claimed):48.5 hp (36.2 kW)
Drawbar (tested):47.30 hp (35.3 kW)
Drawbar (claimed):43.8 hp (32.7 kW)

Engine

Fuel tank:18 gal (gas/diesel) (68.1 L), 31 gal (LP) (117.3 L)
Diesel engine:4-cylinder, liquid-cooled vertical I-head, Displacement 264 ci (4.3 L), Bore/Stroke 4.00x5.25 inches (102 x 133 mm), Compression 16.5:1, Rated RPM 1450, Firing order 1-3-4-2, Starter volts 12, Coolant capacity 29 qts (27.4 L)
LP gas engine:4-cylinder, liquid-cooled vertical I-head, Displacement 264 ci (4.3 L), Bore/Stroke 4.00x5.25 inches (102 x 133 mm), Compression 8.33:1, Rated RPM 1450, Firing order 1-3-4-2, Starter volts 12, Coolant capacity 27 qts (25.6 L)
Engine options:International Harvester 4.3L 4-cyl gasoline, International Harvester 4.3L 4-cyl diesel, International Harvester 4.3L 4-cyl LP gas
Gasoline engine:4-cylinder, liquid-cooled vertical I-head, Displacement 264 ci (4.3 L), Bore/Stroke 4.00x5.25 inches (102 x 133 mm), Compression 6.3:1, Rated RPM 1450, Firing order 1-3-4-2, Starter volts 6, Coolant capacity 27 qts (25.6 L)

Variants

400:Row-crop version (Farmall)

Mechanical

Drive:Two-wheel drive
Brakes:Mechanical disc brakes
Steering:hydraulic power
Operator station:Open operator station

Production

Notes: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.
Total built:2,070 (gas/LP), 1,118 (diesel)
Manufacturer:International Harvester
Original price:$3,400 (1956)
Production years:1955 - 1956

Transmission

Type:sliding gear
Gears:5 forward and 1 reverse
Manufacturer:International Harvester
Torque Amplifier:International Harvester Torque Amplifier, partial power shift, 10 forward and 2 reverse gears, uses a planetary gearset to provide a shift between direct-drive (DD) and the TA underdrive
Transmission options:5-speed sliding gear, 10-speed partial power shift

Serial Numbers

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

Dimensions & Tires

Width:76 inches (193 cm)
Height:93.5 inches (237 cm)
Length:130 inches (330 cm)
Weight:6158 to 6550 pounds
Ag rear:15.00-30
Ag front:6.50-18
Rear tire:15.00-30
Front tire:6.50-18
Ballasted weight:10,453 lbs (4741 kg)
Operating weight gas:6,158 lbs (2793 kg)
Operating weight diesel:6,550 lbs (2971 kg)

Power Take-off (PTO)

Rear PTO:independent
Rear PTO Type:540

Serial Number Location

Location:Serial plate on the clutch housing, left side of tractor.

Related Models

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Model:W-450

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Model:Super W-6