9 material differences · fewer than 12
Tractor oneFiat 1880 (DT)1979–1984No measured PTO figureTractor twoJohn Deere 4640 (A)1978–1982No measured PTO figure
Which should you choose?
Read our verdict on the 1880 (DT) and the 4640 (A) → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
9 material differences · 7 fields identical or within 5%, which is not counted as material
| Field | 1880 (DT) | 4640 (A) | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 177.7 hp | 175.4 hp | — |
| Engine declared | FIAT-IVECO 8365.25.500 | John Deere 6.466 TL | differs |
| Displacement declared | 8.10 L | 7.64 L | +6% 1880 (DT) |
| Maximum torque declared | 504 lb·ft · 684 N·m | 530 lb·ft · 718 N·m | — |
| Transmission | |||
| Top speed declared | 15.5–18.6 mph · 25–30 km/h | 18.6 mph · 30 km/h | differs |
| Clutch declared | — | Hydraulically operated oil cooled double disc clutch | — |
| Hydraulics & hitch | |||
| Hydraulic centre declared | — | Closed centre | — |
| Pump flow declared | 14.7 gpm · 55.8 L/min | 33.3 gpm · 126 L/min | +126% 4640 (A) |
| Pressure declared | 3,336–3,481 psi · 230–240 bar | 3,481 psi · 240 bar | — |
| Rear PTO speeds declared | 540/1000 rpm | 1000 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 14,286 lb · 6,480 kg | 14,352 lb · 6,510 kg | — |
| Maximum permissible mass declared | 22,046 lb · 10,000 kg | 18,585 lb · 8,430 kg | +19% 1880 (DT) |
| Wheelbase declared | 116.7 in · 2,963 mm | 118.5 in · 3,010 mm | — |
| Length declared | 171.9 in · 4,365 mm | 171.3 in · 4,350 mm | — |
| Width declared | 92.9 in · 2,360 mm | 95.7 in · 2,430 mm | — |
| Ground clearance declared | 27.4 in · 695 mm | 14.6 in · 370 mm | +88% 1880 (DT) |
| Turning radius, braked declared | 15.1 ft · 4.60 m | 13.5 ft · 4.10 m | +12% 1880 (DT) |
| Fuel tank declared | 190.2 qt · 180.0 L | 331.8 qt · 314.0 L | +74% 4640 (A) |
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 1880 (DT) sources
- Source: Traktorenlexikon, “Fiat 1880 DT”
John Deere 4640 (A) sources
- Source: Traktorenlexikon, “John Deere 4640”