International Harvester 743 tractor

International Harvester 743

Power

67 hp

Production

1981-1985

Engine

Diesel, 4-cylinder

Transmission

Synchron

Drive

2WD/4WD

Introduction

International Harvester 743 Tractor

The International Harvester 743 is a utility tractor produced between 1981 and 1985 in Neuss, Germany. It was designed to serve as a versatile machine for general agricultural operations, available in both two-wheel drive and four-wheel drive configurations.

Engine and Power

The tractor is powered by the International Harvester D-329 engine, a 3.9-liter, 4-cylinder liquid-cooled diesel unit. It delivers a power output of 67 hp (50.0 kW) at a rated speed of 2300 RPM. The engine configuration uses a bore and stroke of 98 mm by 129 mm, providing reliable power for standard field duties.

Transmission and PTO

The 743 features a synchronized transmission system offered in two configurations: a basic 8-speed (8 forward and 4 reverse) or an extended 16-speed (16 forward and 8 reverse) setup. This variety allows operators to select the appropriate speed for specific tasks. The machine is equipped with a standard 540 RPM rear power take-off (PTO).

Hydraulics and Hitch

The hydraulic system provides a pump flow of 29.9 lpm (7.9 gpm). For implement management, the rear hitch has a lift capacity of 3150 kg (6945 lbs), allowing for the operation of various mounted implements.

Dimensions and Chassis

The tractor is built on a wheelbase of 223 cm (87.80 inches) with a total length of 378 cm (148.82 inches) and a height of 262 cm (103.15 inches). Standard tire equipment for the 2WD model includes 7.50-16 front and 16.9/14-30 rear tires, while the 4WD version utilizes 9.5/9-24 front and 16.9/14-30 rear tires.

Conclusion

The International Harvester 743 is a mid-range utility tractor suited for a variety of farming tasks, offering sufficient hydraulic capacity and power for standard agricultural implements. Its availability in multiple transmission and drivetrain options makes it adaptable to different operational requirements.

International Harvester 743 Manuals & Documentation

Download the manuals and documentation available for the International Harvester 743: repair and workshop manuals, operator's handbooks, spare-parts catalogs and technical leaflets — free PDF files.

Archive documentation provided for reference, hosted by Tractor-Info.

Production Information of International Harvester, 743

  • Built in Neuss, Germany
ManufacturerInternational Harvester

Dimension and Tires Information of International Harvester, 743

Wheelbase87.80 inches [223 cm]
Length148.82 inches [378 cm]
Height103.15 inches [262 cm]
2WD Standard tires (ag)Front: 7.50-16. Rear: 16.9/14-30
4WD Standard tires (ag)Front: 9.5/9-24. Rear: 16.9/14-30

Engine Specifications of International Harvester, 743

  • International Harvester D-329
  • Liquid-cooled
  • Diesel
  • 4-cylinder
Power67 hp [50.0 kW]
Displacement238.65 ci [3.9 L]
Rated RPM2300
Bore/Stroke3.875x5.06 inches [98 x 129 mm]

Transmission Information of International Harvester, 743

Transmission variants 1

TransmissionSynchron
Gears8 forward and 4 reverse

Transmission variants 2

Gears16 forward and 8 reverse
  • 8-speed
  • 16-speed

Mechanical Specs of International Harvester, 743

  • Two- or four-wheel drive

Power Information of International Harvester, 743

Rear PTO Type540

Hydraulics Specifications of International Harvester, 743

Pump flow7.9 gpm [29.9 lpm]

Three-Point Hitch of International Harvester, 743

Rear lift6945 lbs [3150 kg]

Where it sits

With 67 HP, the International Harvester 743 sits between Titan 30-60 (66 HP) and 664 (68 HP) in International Harvester's range. Its power puts it in the 48th percentile of 1980s models in our database (2052 machines).

Frequently asked questions

How much horsepower does the International Harvester 743 have?

The International Harvester 743 delivers 67 HP.

What years was the International Harvester 743 produced?

The International Harvester 743 was produced in 1981-1985.

What engine does the International Harvester 743 have?

The International Harvester 743 is powered by a Diesel, 4-cylinder engine.

What transmission does the International Harvester 743 use?

The International Harvester 743 uses a Synchron transmission.

Is the International Harvester 743 4WD?

The International Harvester 743 is available in 2WD/4WD.

Compare the International Harvester 743 with another model