International Harvester 660


International Harvester 660 tractor photo
1959 - 1963
Standard-tread tractor
Series map:
560
660
72.5hp
95.0hp
Production
ManufacturerInternational Harvester
Standard-tread tractor
Total built6,945
Original price$6,000 (1963)
International Harvester 660 Engines
International Harvester 4.3L 6-cyl gasoline
International Harvester 4.6L 6-cyl diesel
International Harvester 4.3L 6-cyl LP gas
Fuel tank33 gal (gas/diesel)
124.9 L
 37.5 gal (LP gas)
141.9 L
Engine details ...
International Harvester 660 Power
Engine95 hp
70.8 kW
Plows6
Drawbar (tested)70.21 hp
52.4 kW
PTO (tested)81.39 hp
60.7 kW
Performance test details ...
Mechanical
Two-wheel drive
Steeringmanual
 hydrostatic power optional
Independent mechanical disc brakes
Open operator station.
Hydraulics
Valves1
Total flow12 gpm
45.4 lpm
 17 gpm (optional)
64.3 lpm
Steering flow2.5 gpm
9.5 lpm
Power Take-off (PTO)
Rear PTOindependent
Rear PTO Type540
Dimensions & Tires
Wheelbase85.5 inches
217 cm
Weight9635 to 9875 pounds
Front tire7.50-18
Rear tire18.4/15-34
Full dimensions and tires ...
660 Serial Number Location
International Harvester 660 serial number location
Right side of clutch housing
660 Serial Numbers
1959501
19603398
19614259
19625883
19636995
Final?

FAQ: How to read a serial number table.
References
660 references literature
Buyers Guide International Industrial Tractors & Equipment published in 1960, by International Harvester
Industrial Tractors and matched equipment published in 1960, by International Harvester
Industrial Tractors & Equipment Buyers Guide published in 1962, by International Harvester
Direct-Start Diesel Tractors published in 1958, by International Harvester
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Updated on August 30, 2023
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