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International Harvester 523 Specifications

IH 523 Engine Technical Data

Engine Model ................. International Harvester D-179
Engine Type ................. 4-stroke, 3-cylinder liquid-cooled diesel
Number of Cylinders ................. 3
Displacement, cu in (L) ................. 179 (2.90)
Engine Bore, in (mm) ................. 3.88 (98.0)
Engine Stroke, in (mm) ................. 5.06 (129.0)
Aspiration ................. Natural
Rated Engine Power, hp (kW) ................. 52.0 (38.8)
Rated Engine Speed, rpm ................. 2100
Idle Speed, rpm ................. 700-2400
Compression ................. 15:1
Fuel System ................. Direct injection
Air Cleaner ................. Dry
Fuel Tank Capacity, gal (L) ................. 18.5 (70.0)
Oil Capacity, qts (L) ................. 6.8 (6.4)
Coolant Capacity, qts (L) ................. 16.3 (15.4)
Electrical System Rating, Volts ................. 12
Charging System ................. Alternator

Power Take-Off

PTO Operational Type ................. Independent
PTO Horsepower, hp (kW) ................. 45.0 (33.3)
PTO Clutch ................. Dry disc
PTO Speeds, rpm ................. 540/1000

International Harvester 523 Transmission

Transmission Type ................. Partially synchronized
Gearbox Type ................. 8F/4R
Number of Forward Gears ................. 8
Number of Reverse Gears ................. 4
Clutch ................. Dry disc
Clutch Disc Diameter, in (mm) ................. 11.0 (280)
Oil Capacity, qts (L) ................. 35.1 (33.2)
Maximum Forward Speed, mph (kph) ................. 13.4 (21.6)
Maximum Reverse Speed, mph (kph) ................. 7.0 (11.3)

Transmission Type ................. Agriomatic S
Gearbox Type ................. 12F/4R, partial powershift
Number of Forward Gears ................. 12
Number of Reverse Gears ................. 4
Clutch ................. Dry disc
Maximum Forward Speed, mph (kph) ................. 13.4 (21.6)
Maximum Reverse Speed, mph (kph) ................. 7.0 (11.3)

IH 523 Wheels and Tires

Drive Wheels ................. 2WD/4WD
Steering Configuration ................. Front Steer
Steering System ................. Manual
Brakes Type ................. Dry disc
Front Tire Size (2WD) ................. 6.00-16
Rear Tire Size (2WD) ................. 12.4-32
Front Tire Size (4WD) ................. 9.50-24
Rear Tire Size (4WD) ................. 16.9-30

International Harvester 523 Hydraulics and Hitch

Hydraulic System Type ................. Open Center
Implement Pump Flow, gpm (Lpm) ................. 7.5 (28.4)
Hydraulic Pressure, Bar (psi) ................. 165 (2400)
Hydraulic Fluid Capacity, gal (L) ................. 4.3 (16.3)
3-Point Hitch Category ................. 2/1
Draft Sensing or Lift Control ................. Position and draft control
Standard Lift Capacity at lift pin, lb (kg) ................. 3745 (1700)

IH 523 Dimensions and Weight

Wheelbase, in (mm) ................. 78.7 (1990)
Length, in (mm) ................. 119.8 (3040)
Height (Steering Wheel), in (mm) ................. 59.8 (1510)
Overall Width, in (mm) ................. 63.8 (1620)
Ground Clearance, in (mm) ................. 15 (380)
Weight (2WD), lb (kg) ................. 5380 (2440)
Weight (4WD), lb (kg) ................. 6295 (2855)