International Harvester W-400

The International Harvester W-400 is a tractor produced by International Harvester. It is equipped with a 264 ci 4.3 L engine. The rated power output is 50.72 hp 37.8 kW. Transmission: International Harvester Torque Amplifier. Operating weight: 6158 to 6550 pounds.

Overview

	1955 - 1956	1955 - 1956

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
400	Row-crop version (Farmall)

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
Performance test details ...

Mechanical
Two-wheel drive
Steering	hydraulic power
Mechanical disc brakes
Open operator station.

Power Take-off (PTO)
Rear PTO	independent
Rear PTO Type	540

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

Engine

Engine options
International Harvester 4.3L 4-cyl gasoline
International Harvester 4.3L 4-cyl diesel
International Harvester 4.3L 4-cyl LP gas

Engine Detail — 264 ci / 4.3 L Gasoline

Manufacturer	International Harvester
Fuel Type	Gasoline
Configuration	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 — 264 ci / 4.3 L Diesel

Manufacturer	International Harvester
Fuel Type	Diesel
Configuration	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 — 264 ci / 4.3 L LP Gas

Manufacturer	International Harvester
Fuel Type	LP gas
Configuration	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

Transmission

Transmission options
5-speed sliding gear
10-speed partial power shift

Transmission — 5 forward and 1 reverse sliding gear

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

Transmission — International Harvester Torque Amplifier

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.

Dimensions

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

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

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

Tests

Tractor Tests
NTTL 533: gasoline Torque Amplifier 2WD
NTTL 535: diesel Torque Amplifier 2WD
NTTL 572: LP gas Torque Amplifier 2WD

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
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
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.

Photos

International Harvester W-400

International Harvester W-400