8 material differences · fewer than 12
Tractor oneInternational Harvester 41661972–1976No measured PTO figureTractor twoOLIVER 2255 (4 WD)1972–1976No measured PTO figure
Which should you choose?
Read our verdict on the 4166 and the 2255 (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
8 material differences · 4 fields identical or within 5%, which is not counted as material
| Field | 4166 | 2255 (4 WD) | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 150.9 hp | 146.0 hp | — |
| Engine declared | INTERNATIONAL HARVESTER DT-436 | CATERPILLAR 3150 or 3208 | differs |
| Displacement declared | 7.14 L | — | — |
| Transmission | |||
| Top speed declared | 18.6 mph · 30 km/h | 18.6 mph · 30 km/h | — |
| Clutch declared | Pedal operated dry single plate clutch | Foot-operated dry single-disc clutch | differs |
| Hydraulics & hitch | |||
| Hydraulic centre declared | — | Closed centre | — |
| Pump flow declared | 16.5 gpm · 62.5 L/min | 20.0 gpm · 75.7 L/min | +21% 2255 (4 WD) |
| Rear PTO speeds declared | 1000 rpm | 1000 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 16,325 lb · 7,405 kg | 16,407 lb · 7,442 kg | — |
| Wheelbase declared | 102.0 in · 2,591 mm | 108.4 in · 2,753 mm | +6% 2255 (4 WD) |
| Length declared | 194.0 in · 4,928 mm | 166.0 in · 4,216 mm | +17% 4166 |
| Width declared | 103.0 in · 2,616 mm | 81.5 in · 2,070 mm | +26% 4166 |
| Ground clearance declared | 17.0 in · 432 mm | 24.5 in · 622 mm | +44% 2255 (4 WD) |
| Turning radius, braked declared | — | 11.7 ft · 3.57 m | — |
| Fuel tank declared | 400.0 qt · 378.5 L | 140.0 qt · 132.5 L | +186% 4166 |
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 4166 sources
- Source: Traktorenlexikon, “IHC 4166”
- Source: Traktorenlexikon, “IHC 1466”
OLIVER 2255 (4 WD) sources
- Source: Traktorenlexikon, “Oliver 2255”