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International Harvester 743 Technical Specifications

International Harvester 743 Engine Data

Engine Model ................. International Harvester D-239
Engine Type ................. 4-stroke, 4-cylinder liquid-cooled diesel
Number of Cylinders ................. 4
Displacement, cu in (L) ................. 239 (3.92)
Engine Bore, in (mm) ................. 3.87 (99.0)
Engine Stroke, in (mm) ................. 5.06 (129.0)
Aspiration ................. Natural
Rated Engine Power, hp (kW) ................. 67.0 (50.0)
Rated Engine Speed, rpm ................. 2300
Maximum Torque, Nm (ft-lbs) ................. 235 (173)
Torque Speed, rpm ................. 1600
Compression ................. 15:1
Fuel System ................. Direct injection
Fuel Tank Capacity, gal (L) ................. 28.0 (106.0)
Oil Capacity, qts (L) ................. 9.5 (9.0)
Coolant Capacity, qts (L) ................. 18.5 (17.5)
Electrical System Rating, Volts ................. 12
Charging System ................. Alternator
Alternator Rating, Amps ................. 55

IH 743 Power Take-Off

PTO Operational Type ................. Independent
PTO Horsepower, hp (kW) ................. 55.8 (41.4)
PTO Clutch ................. Hydraulic
PTO Speeds, rpm ................. 540

Transmission

Transmission Type ................. Synchron
Gearbox Type ................. 16F/8R, 2-speed powershift
Number of Forward Gears ................. 16
Number of Reverse Gears ................. 8
Clutch ................. Dry disc
Maximum Forward Speed, mph (kph) ................. 18.6 (29.9)
Maximum Reverse Speed, mph (kph) ................. 10.0 (16.1)

IH 743 Wheels and Tires

Drive Wheels ................. 2WD/4WD
Steering Configuration ................. Front Steer
Steering System ................. Hydrostatic power
Brakes Type ................. Hydraulic wet disc
Front Tire Size (2WD) ................. 7.50x16
Rear Tire Size (2WD) ................. 16.9x30
Front Tire Size (4WD) ................. 9.50x24
Rear Tire Size (4WD) ................. 16.9x30
Front Tread, in (mm) ................. 52.9-73.1 (1340-1850)
Rear Tread, in (mm) ................. 58-77.7 (1470-1970)

International Harvester 743 Hydraulics and Hitch

Hydraulic System Type ................. Open Center
Implement Pump Flow, gpm (Lpm) ................. 7.9 (29.9)
Hydraulic Capacity, gal (L) ................. 3.2 (12.1)
Hydraulic Pressure, Bar (psi) ................. 167 (2450)
Number of Standard Remote Valves ................. 1/2
3-Point Hitch Category ................. 2
Standard Lift Capacity at lift pin, lb (kg) ................. 6945 (3150)

IH 743 Dimensions and Weight

Wheelbase (2WD), in (mm) ................. 87.7 (2220)
Wheelbase (4WD), in (mm) ................. 86.6 (2190)
Length, in (mm) ................. 148.8 (3780)
Height (Cab), in (mm) ................. 103.2 (2620)
Ground Clearance, in (mm) ................. 21.9 (550)
Turning Radius, in (mm) ................. 178 (4500)
Weight (2WD), lb (kg) ................. 6850 (3115)
Weight (4WD), lb (kg) ................. 7720 (3510)