10 material differences · fewer than 12
Tractor oneIMT 5100/51061982–1992No measured PTO figureTractor twoInternational Harvester 9661971–1974No measured PTO figure
Which should you choose?
We will not advise between these two machines, because the drive differs (Two-wheel or four-wheel drive; 2WD); they were not built in overlapping years (1982–1992; 1971–1974). The figures below are side by side so you can judge them yourself; each says whether it was measured, claimed or declared by its source.
Field by field
10 material differences · 4 fields identical or within 5%, which is not counted as material
| Field | 5100/5106 | 966 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 103.5 hp | 95.6 hp | +8% 5100/5106 |
| Engine declared | IMR-PERKINS S 46/T (A 6.354) | INTERNATIONAL HARVESTER D-414 | differs |
| Displacement declared | 5.80 L | 6.78 L | +17% 966 |
| Maximum torque declared | 256 lb·ft · 347 N·m | 305 lb·ft · 414 N·m | +19% 966 |
| Transmission | |||
| Top speed declared | 18.6 mph · 30 km/h | 18.6 mph · 30 km/h | — |
| Clutch declared | Pedal-operated dry Fichtel & Sachs single-disc clutch | Pedal-operated DYNA-LIFE clutch | differs |
| Hydraulics & hitch | |||
| Pump flow declared | 10.3 gpm · 39.0 L/min | 12.0 gpm · 45.5 L/min | +17% 966 |
| Rear PTO speeds declared | 540/1000 rpm | 540/1000 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 11,177 lb · 5,070 kg | 11,625 lb · 5,273 kg | — |
| Wheelbase declared | 108.3 in · 2,750 mm | 104.8 in · 2,662 mm | — |
| Length declared | 178.0 in · 4,521 mm | 165.0 in · 4,191 mm | +8% 5100/5106 |
| Width declared | 82.7 in · 2,100 mm | 98.0 in · 2,489 mm | +19% 966 |
| Ground clearance declared | 18.1 in · 460 mm | 14.0 in · 356 mm | +29% 5100/5106 |
| Turning radius, braked declared | 13.9 ft · 4.25 m | 11.8 ft · 3.61 m | +18% 5100/5106 |
| Fuel tank declared | 227.2 qt · 215.0 L | 147.9 qt · 140.0 L | +54% 5100/5106 |
Height is not in this table. It is not one measurement: the sources measure it to different points — over the cab on some machines, over the steering wheel or the exhaust on others — and the same tractor measured two ways can differ by most of a metre. It appears here only when both machines' figures carry the point they were measured to and it is the same point, which is not the case for these two. Each machine's own page prints its height as its source gives it.
IMT 5100/5106 sources
- Source: Traktorenlexikon, “IMT 5100/5106”
International Harvester 966 sources
- Source: Traktorenlexikon, “Farmall Farmall 966”
- Source: Traktorenlexikon, “IHC 966”