10 material differences · fewer than 12
Tractor oneInternational Harvester 9861976–1981No measured PTO figureTractor twoOLIVER 1950 (4 WD)1964–1974No measured PTO figure
Which should you choose?
Read our verdict on the 986 and the 1950 (4 WD) → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
10 material differences · 5 fields identical or within 5%, which is not counted as material
| Field | 986 | 1950 (4 WD) | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 105.5 hp | 105.5 hp | — |
| Engine declared | INTERNATIONAL HARVESTER D-436 | GENERAL-MOTORS 4V-53 N | differs |
| Displacement declared | 7.14 L | 3.48 L | +105% 986 |
| Maximum torque declared | 315 lb·ft · 427 N·m | 271 lb·ft · 367 N·m | +16% 986 |
| Transmission | |||
| Top speed declared | 18.6 mph · 30 km/h | 15.5 mph · 25 km/h | +20% 986 |
| Clutch declared | Pedal-operated Dyna-Life clutch | Foot-operated dry Borg & Beck single-disc clutch | differs |
| Hydraulics & hitch | |||
| Pump flow declared | 12.0 gpm · 45.4 L/min | 11.8 gpm · 44.5 L/min | — |
| Rear PTO speeds declared | 540/1000 rpm | 549/984 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 13,029 lb · 5,910 kg | 12,974 lb · 5,885 kg | — |
| Wheelbase declared | 104.8 in · 2,662 mm | 105.0 in · 2,667 mm | — |
| Length declared | 167.0 in · 4,242 mm | 159.5 in · 4,051 mm | — |
| Width declared | 102.0 in · 2,591 mm | 86.5 in · 2,197 mm | +18% 986 |
| Ground clearance declared | 13.0 in · 330 mm | 18.5 in · 470 mm | +42% 1950 (4 WD) |
| Turning radius, braked declared | 11.7 ft · 3.58 m | 12.9 ft · 3.94 m | +10% 1950 (4 WD) |
| Fuel tank declared | 200.0 qt · 189.3 L | 111.0 qt · 105.0 L | +80% 986 |
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.
International Harvester 986 sources
- Source: Traktorenlexikon, “IHC 986”
- Source: Traktorenlexikon, “IHC Hydro 100”
OLIVER 1950 (4 WD) sources
- Source: Traktorenlexikon, “Oliver 1950”