International Harvester W-400 tractor specifications

1955 - 1956

Production

Production 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.

Variants

Variants 400:Row-crop (Farmall) version

1954 - 1956

Row-Crop tractor

Production

Production
Manufacturer:	Farmall (a part of International Harvester)
Type:	Row-Crop tractor
Factory:	Rock Island, Illinois, USA
Total built:	40,957
Original price:	$3,500 (1954)

Variants

Variants
400:	row-crop
W-400:	standard
400 Hi-Clear:	high-crop

Farmall 400 Power

Farmall 400 Power
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
power test details ...

Farmall 400 Engines

Farmall 400 Engines
International Harvester 4.3L 4-cyl gasoline
International Harvester 4.3L 4-cyl diesel
International Harvester 4.3L 4-cyl LP gas
Engine details ...

Mechanical

Mechanical
Chassis:	4x2 2WD
Steering:	manual
	power optional
Brakes:	manual disc
Cab:	Open operator station.
Transmission:	10-speed partial power shift
Transmission details ...

Capacity

Capacity
Fuel:	21.5 gal 81.4 L
Aux. fuel:	0.9 gal 3.4 L
Hydraulic system:	3.5 gal 13.2 L
	3.63 gal 13.7 L (power steering)

Hydraulics

Hydraulics
Type:	Hydra-Touch
Capacity:	3.5 gal 13.2 L
	3.63 gal 13.7 L (power steering)
Valves:	3

Tractor hitch

Tractor hitch
Type:	IH Fast Hitch (optional)
Rear lift:	2,000 lbs 907 kg

Power Take-off (PTO)

Power Take-off (PTO)
Rear PTO:	transmission
	independent (optional)
Rear RPM:	540
Engine RPM:	537@1450 (trans.) 534@1450 (ind.)

Dimensions & Tires

Dimensions & Tires
Wheelbase:	95.75 inches 243 cm
Weight:	6,300 lbs 2857 kg
Front tire:	6.00-16
Rear tire:	12-38
Full dimensions and tires ...

400 Serial Numbers

400 Serial Numbers
Location:	Left side of clutch housing
photo of 400 serial number
1954:	501
1955:	4732
1956:	29065
how to read serial numbers...

Belt Pulley

Belt Pulley
Diameter:	11 inches 27 cm
Width:	7.5 inches 19 cm
RPM:	899
Speed:	2,588 ft/min 788.82 meters/min

Electrical

Electrical
Ground:	positive (6V)
	negative (12V)
Charging system:	generator
Battery volts:	6 (gas)
	12 (diesel)

International Harvester W-400 Power

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 ...

1955 - 1956

Nebraska Tractor Test 533

Nebraska Tractor Test 533
Gasoline Torque Amplifier 2WD March 28 - April 8, 1955 Link: Nebraska Tractor Test 533 file
Belt power (max):	51.94 hp 38.7 kW
Belt fuel use (max):	4.4 gal/hour 16.7 l/hour
Drawbar performance
Max power:	45.84 hp 34.2 kW
Gear 3 used for power test.
Max pull:	6,361 lbs 2885 kg
Gear 1 used for pull test.

Nebraska Tractor Test 535

Nebraska Tractor Test 535
Diesel Torque Amplifier 2WD April 8 - 20, 1955 Link: Nebraska Tractor Test 535 file
Belt power (max):	46.61 hp 34.8 kW
Belt fuel use (max):	3.4 gal/hour 12.9 l/hour
Drawbar performance
Max power:	41.20 hp 30.7 kW
Gear 3 used for power test.
Max pull:	6,476 lbs 2937 kg
Gear 1 used for pull test.

Nebraska Tractor Test 572

Nebraska Tractor Test 572
LP gas Torque Amplifier 2WD May 9 - 25, 1956 Link: Nebraska Tractor Test 572 file
Belt power (max):	50.72 hp 37.8 kW
Belt fuel use (max):	5.7 gal/hour 21.6 l/hour
Drawbar performance
Max power:	47.30 hp 35.3 kW
Gear 3 used for power test.
Max pull:	6,684 lbs 3031 kg
Gear 1 used for pull test.

International Harvester W-400 Engines

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 ...

1955 - 1956

Engines overview

Engines overview
International Harvester 4.3L 4-cyl gasoline
International Harvester 4.3L 4-cyl diesel
International Harvester 4.3L 4-cyl LP gas

Engine Detail

Engine Detail
International Harvester
gasoline
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

Engine Detail

Engine Detail
International Harvester
diesel
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

Engine Detail

Engine Detail
International Harvester
LP gas
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

Mechanical

Mechanical 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 ...

1955 - 1956

Transmissions overview

Transmissions overview
5-speed sliding gear
10-speed partial power shift

Transmission

Transmission
Manufacturer:	International Harvester
Type:	sliding gear
Gears:	5 forward and 1 reverse

Speeds

Speeds

Transmission

Transmission
Transmission:	International Harvester Torque Amplifier
Type:	partial power shift
Gears:	10 forward and 2 reverse
The Torque Amplifier (TA) uses a planetary gearset to provide a shift between direct-drive (DD) and the TA underdrive.

Speeds

Speeds

Power Take-off (PTO)

Power Take-off (PTO) Rear PTO:independent
Rear RPM:540

Dimensions & Tires

Dimensions & Tires Weight:6158 to 6550 pounds
Front tire:6.50-18
Rear tire:15.00-30
Full dimensions and tires ...

1955 - 1956

International Harvester W-400 Tires

International Harvester W-400 Tires
Ag front:	6.50-18
Ag rear:	15.00-30

Dimensions

Dimensions
Length:	130 inches 330 cm
Width:	76 inches 193 cm
Height:	93.5 inches 237 cm

International Harvester W-400 Weight

International Harvester W-400 Weight
Operating:	6,158 lbs 2793 kg (gas)
	6,550 lbs 2971 kg (diesel)
Ballasted:	10,453 lbs 4741 kg

W-400 Serial Numbers

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...