8 material differences · fewer than 12
Tractor oneFiat 680 (DT)1978–1984No measured PTO figureTractor twoInternational Harvester 6841977–1981No measured PTO figure
Which should you choose?
We will not advise between these two machines, because their unladen weight differs by more than 25% (40%). 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
8 material differences · 6 fields identical or within 5%, which is not counted as material
| Field | 680 (DT) | 684 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 67 hp | 68.0 hp | — |
| Engine declared | FIAT-IVECO 8045.02.270 (370) | INTERNATIONAL-HARVESTER D-239 | differs |
| Displacement declared | 3.46 L | 3.91 L | +13% 684 |
| Maximum torque declared | — | 162 lb·ft · 220 N·m | — |
| Transmission | |||
| Top speed declared | 15.5–18.6 mph · 25–30 km/h | 15.5 mph · 25 km/h | differs |
| Clutch declared | Dry FERODO or LuK double clutch with separate PTO control | — | — |
| Hydraulics & hitch | |||
| Pump flow declared | 6.8 gpm · 25.8 L/min | 9.9 gpm · 37.5 L/min | +45% 684 |
| Pressure declared | 2,843 psi · 196 bar | 2,698 psi · 186 bar | +5% 680 (DT) |
| Rear PTO speeds declared | 540/1000 rpm | 540/1000 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 7,275 lb · 3,300 kg | 5,181 lb · 2,350 kg | +40% 680 (DT) |
| Wheelbase declared | 89.2 in · 2,265 mm | 88.0 in · 2,235 mm | — |
| Length declared | 138.1 in · 3,507 mm | 146.5 in · 3,720 mm | +6% 684 |
| Width declared | 68.9 in · 1,750 mm | 70.1 in · 1,780 mm | — |
| Ground clearance declared | 20.1 in · 511 mm | 14.6 in · 370 mm | +38% 680 (DT) |
| Turning radius, braked declared | 11.2 ft · 3.40 m | 10.9 ft · 3.33 m | — |
| Fuel tank declared | 84.5 qt · 80.0 L | 81.4 qt · 77.0 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.
Fiat 680 (DT) sources
- Source: Traktorenlexikon, “Fiat 680 /680 DT”
International Harvester 684 sources
- Source: Traktorenlexikon, “IHC 684”
- Source: Traktorenlexikon, “IHC 574”