International Harvester W-450

The International Harvester W-450 is a tractor produced by International Harvester. It is equipped with a 281 ci 4.6 L engine. The rated power output is 50.72 hp 37.8 kW. Transmission: Torque Amplifier. Operating weight: 5720 lbs 2594 kg.

Overview

	1956 - 1958 Standard-tread tractor
1956 - 1958
Standard-tread tractor

Production
Manufacturer	International Harvester
Standard-tread tractor
Built in Rock Island, Illinois, USA

Variants
450	row-crop
W-450	standard-front
400 Hi-Clear	high-crop

International Harvester W-450 Transmission
10-speed two-speed power shift
Transmission details ...

International Harvester W-450 Power
Drawbar (claimed)	34-37 hp 25.4 kW
PTO (claimed)	41-46 hp 30.6 kW
Drawbar (tested)	47.30 hp 35.3 kW
Belt (tested)	51.94 hp 38.7 kW
Performance test details ...

Mechanical
Two-wheel drive
Open operator station.

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

Dimensions & Tires
Wheelbase	82 inches 208 cm
Weight	5720 lbs 2594 kg
Front tire	6.00-16
Rear tire	15.5-38
Full dimensions and tires ...

Engine

Engine options
International Harvester 4.6L 4-cyl gasoline
International Harvester 4.6L 4-cyl diesel
International Harvester 4.6L 4-cyl LP gas

Engine Detail — 281 ci / 4.6 L Gasoline

Manufacturer	International Harvester
Fuel Type	Gasoline
Configuration	4-cylinder, liquid-cooled vertical I-head
Displacement	281 ci 4.6 L
Bore/Stroke	4.125x5.25 inches 105 x 133 mm
Compression	6.6:1
Rated RPM	1450
Starter volts	6
Coolant capacity	28 qts 26.5 L

Engine Detail — 281 ci / 4.6 L Diesel

Manufacturer	International Harvester
Fuel Type	Diesel
Configuration	4-cylinder, liquid-cooled vertical I-head
Displacement	281 ci 4.6 L
Bore/Stroke	4.125x5.25 inches 105 x 133 mm
Compression	17.45:1
Rated RPM	1450
Starter volts	12

Engine Detail — 281 ci / 4.6 L LP Gas

Manufacturer	International Harvester
Fuel Type	LP gas
Configuration	4-cylinder, liquid-cooled vertical I-head
Displacement	281 ci 4.6 L
Bore/Stroke	4.125x5.25 inches 105 x 133 mm
Compression	8.35:1
Rated RPM	1450
Starter volts	6

Transmission

Transmission — Torque Amplifier

Transmission	Torque Amplifier
Type	two-speed power shift
Gears	10 forward and 2 reverse

Dimensions

International Harvester W-450 Tires
Ag front	6.00-16
Ag rear	15.5-38

Dimensions
Wheelbase	82 inches 208 cm
Length	130 inches 330 cm
Width	84 inches 213 cm
Height	95 inches 241 cm
Shipping weight	5720 lbs 2594 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 W-450 pulling a baler in 1959.

International W-450 at the center of a lineup of tractors in 1958.

International W-450 in a museum.

International W-450 in a museum.

International W-450 pulling a silage chopper in the 1950s.