6 material differences · fewer than 12
Tractor oneInternational Harvester 14561969–1971No measured PTO figureTractor twoInternational Harvester 14661971–1976No measured PTO figure
Which should you choose?
Read our verdict on the 1456 and the 1466 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
6 material differences · 7 fields identical or within 5%, which is not counted as material
| Field | 1456 | 1466 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 132.2 hp | 133.2 hp | — |
| Engine declared | INTERNATIONAL HARVESTER DT-407 | INTERNATIONAL HARVESTER DT-436 | differs |
| Displacement declared | 6.67 L | 7.14 L | +7% 1466 |
| Transmission | |||
| Top speed declared | 18.6 mph · 30 km/h | 18.6 mph · 30 km/h | — |
| Clutch declared | Pedal operated dry single plate clutch | Pedal operated ceramic clutch | differs |
| Hydraulics & hitch | |||
| Pump flow declared | — | 12.0 gpm · 45.5 L/min | — |
| Rear PTO speeds declared | 1000 rpm | 1000 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 12,800 lb · 5,806 kg | 13,479 lb · 6,114 kg | +5% 1466 |
| Wheelbase declared | 104.8 in · 2,662 mm | 104.8 in · 2,662 mm | — |
| Length declared | 164.0 in · 4,166 mm | 168.0 in · 4,267 mm | — |
| Width declared | 92.0 in · 2,337 mm | 98.0 in · 2,489 mm | +7% 1466 |
| Ground clearance declared | 23.5 in · 597 mm | 16.0 in · 406 mm | +47% 1456 |
| Turning radius, braked declared | 11.7 ft · 3.56 m | 11.7 ft · 3.56 m | — |
| Fuel tank declared | 168.0 qt · 159.0 L | 168.0 qt · 159.0 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 1456 sources
Source
- Source: Traktorenlexikon, “IHC 1456”
- Source: Traktorenlexikon, “IHC 1026”
International Harvester 1466 sources
Source
- Source: Traktorenlexikon, “IHC 1466”
- Source: Traktorenlexikon, “Farmall Farmall 1466”