8 material differences · fewer than 12
Tractor oneInternational Harvester 9861976–1981No measured PTO figureTractor twoJ.I. Case 10901970No measured PTO figure
Which should you choose?
Read our verdict on the 986 and the 1090 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
8 material differences · 4 fields identical or within 5%, which is not counted as material
| Field | 986 | 1090 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 105.5 hp | 121.2 hp | +15% 1090 |
| Engine declared | INTERNATIONAL HARVESTER D-436 | CASE A-451 | differs |
| Displacement declared | 7.14 L | 7.39 L | — |
| Maximum torque declared | 315 lb·ft · 427 N·m | — | — |
| 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 | — | — |
| Hydraulics & hitch | |||
| Pump flow declared | 12.0 gpm · 45.4 L/min | 16.0 gpm · 60.6 L/min | +33% 1090 |
| Rear PTO speeds declared | 540/1000 rpm | 1000 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 13,029 lb · 5,910 kg | 10,395 lb · 4,715 kg | +25% 986 |
| Wheelbase declared | 104.8 in · 2,662 mm | 108.0 in · 2,743 mm | — |
| Length declared | 167.0 in · 4,242 mm | 162.0 in · 4,115 mm | — |
| Width declared | 102.0 in · 2,591 mm | 88.0 in · 2,235 mm | +16% 986 |
| Ground clearance declared | 13.0 in · 330 mm | 15.0 in · 381 mm | +15% 1090 |
| Turning radius, braked declared | 11.7 ft · 3.58 m | 13.0 ft · 3.97 m | +11% 1090 |
| Fuel tank declared | 200.0 qt · 189.3 L | 200.0 qt · 189.3 L | — |
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
- Source: Traktorenlexikon, “IHC 986”
- Source: Traktorenlexikon, “IHC Hydro 100”
J.I. Case 1090 sources
Source
- Source: Traktorenlexikon, “Case 1090”
- Source: Traktorenlexikon, “Case 1070”