| Production | |
| Manufacturer | International Harvester |
| Row-Crop tractor | |
| Built in Rock Island, Illinois, USA | |
| Total built | 21,017 |
| Original price was $18,000 in 1976 | |
| Variants | |
| Hi-Clear | high-crop model |
| International Harvester 966 Engine | |
| International Harvester 6.8L 6-cyl diesel | |
| International Harvester 966 Transmissions | |
| 8-speed gear | |
| 16-speed two-speed power shift | |
| hydrostatic | |
| International Harvester 966 Power | |
| Engine | 91 hp 67.9 kW |
| Drawbar (claimed) | 84 hp 62.6 kW |
| PTO (claimed) | 95 hp 70.8 kW |
| Drawbar (tested) | 85.21 hp 63.5 kW |
| PTO (tested) | 100.80 hp 75.2 kW |
| Mechanical | |
| Two- or four-wheel drive | |
| Power steering | |
| Independent hydraulic dry disc brakes | |
| Cab optional with heat and air-conditioning. |
| Photos | |
| No photos of the International Harvester 966 are currently available. To submit yours, email it to Peter@TractorData.com. Photos may only be used with the permission of the original photographer. | |
| Capacity | |
| Fuel | 37 gal 140.0 L |
| Hydraulic system | 22.5 gal 85.2 L |
| Hydraulics | |
| Type | open center |
| Capacity | 22.5 gal 85.2 L |
| Pressure | 2000 psi 137.9 bar |
| Valves | 1 to 4 |
| Pump flow | 12 gpm 45.4 lpm |
| Total flow | 21 gpm 79.5 lpm |
| Steering flow | 9 gpm 34.1 lpm |
| Steering press. | 1550 psi 106.9 bar |
| Tractor hitch | |
| Rear Type | II |
| Rear lift (at 24"/610mm) | 4400 lbs 1995 kg |
| Type | IH Fast Hitch |
| Rear lift | 5000 lbs (at 24 inches) 2268 kg |
| Power Take-off (PTO) | |
| Rear PTO | independent |
| Rear PTO Type | 540/1000 |
| Dimensions & Tires | |
| Wheelbase | 105 inches 266 cm |
| Weight | 11116 to 11700 pounds |
| Front tire | 9.5L-15 |
| Rear tire | 18.4-34 |
| 966 Serial Numbers | |
| Location: | Clutch housing, left side |
| 1971 | 7101 |
| 1972 | 11815 |
| 1973 | 17794 |
| 1974 | 22526 |
| 1975 | 28119 |
| 1976 | 31772 |
FAQ: How to read a serial number table. | |
| Electrical | |
| Charging amps | 32 |
| Batteries | 2 |
| Battery volts | 6 |
| Battery AH | 172 |
| References | |
![]() | |
| 766, 966, 1066 and 1466 Tractors published in 1972, by International Harvester | |
| 766, 966, 1066 and 1466 Tractors published in 1973, by International Harvester | |
| 27PS-115PS published in 1975, by International Harvester |
| Page information | |
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| Copyright 2024 TractorData.com® | |
| 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 August 8, 2023 |