| Production | |
| Manufacturer | International Harvester |
| Utility tractor | |
| Built in Rock Island, Illinois, USA | |
| Original price was $7,500 in 1973 | |
| International Harvester 664 Engine | |
| International Harvester 3.9L 4-cyl diesel | |
| Fuel tank | 17.5 gal 66.2 L |
| International Harvester 664 Transmissions | |
| 10-speed two-speed power shift | |
| 5-speed gear | |
| International Harvester 664 Power | |
| Drawbar (claimed) | 54 hp 40.3 kW |
| PTO (claimed) | 62 hp 46.2 kW |
| Mechanical | |
| Two-wheel drive | |
| Final drives | bull gear |
| Power steering | |
| Mechanical disc brakes | |
| Open operator station. | |
| Hydraulics | |
| Type | open center |
| Pump flow | 12 gpm 45.4 lpm |
| Tractor hitch | |
| Rear Type | II |
| Control | draft control |
| Power Take-off (PTO) | |
| Rear PTO | independent |
| Clutch | hydrauilc disc |
| Rear PTO Type | 540 (1.375) |
|   | 1000 (1.375) |
| Engine RPM | 540@2000 |
|   | 1000@2240 |
| Dimensions & Tires | |
| Wheelbase | 74 inches 187 cm |
| Weight | 5950 lbs 2698 kg |
| Front tire | 6.50-16 |
| Rear tire | 14.9-30 |
| 664 Serial Numbers | |
| 1972 | 2501 |
| 1973 | 3212 |
FAQ: How to read a serial number table. | |
| Electrical | |
| Charging system | alternator |
| Charging amps | 32 |
| Batteries | 2 |
| Battery volts | 6 |
| Battery AH | 135 |
| References | |
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| Farm Equipment Reference Catalog published in 1972, by International Harvester |
| Page information | |
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| TractorData is a family-owned small business located in Minnesota that has been providing reference information on tractors since 1999. | |
| Peter Easterlund - owner/author | |
| Email: Peter@TractorData.com | |
| Updated on February 7, 2024 |