8 material differences · fewer than 12
Tractor oneJohn Deere 4640 (A)1978–1982No measured PTO figureTractor twoSOMECA 1880 (TD)1979–1983No measured PTO figure
Which should you choose?
Read our verdict on the 4640 (A) and the 1880 (TD) → 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 · 7 fields identical or within 5%, which is not counted as material
| Field | 4640 (A) | 1880 (TD) | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 175.4 hp | 177.6 hp | — |
| Engine declared | John Deere 6.466 TL | FIAT-IVECO 8365.25.500 | differs |
| Displacement declared | 7.64 L | 8.10 L | +6% 1880 (TD) |
| Maximum torque declared | 530 lb·ft · 718 N·m | 504 lb·ft · 684 N·m | — |
| Transmission | |||
| Top speed declared | 18.6 mph · 30 km/h | 15.5–18.6 mph · 25–30 km/h | differs |
| Clutch declared | Hydraulically operated oil cooled double disc clutch | Pedal-operated FERODO or LuK single-plate clutch | differs |
| Hydraulics & hitch | |||
| Hydraulic centre declared | Closed centre | — | — |
| Pump flow declared | 33.3 gpm · 126 L/min | — | — |
| Pressure declared | 3,481 psi · 240 bar | 3,336–3,481 psi · 230–240 bar | — |
| Rear PTO speeds declared | 1000 rpm | 1000 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 14,352 lb · 6,510 kg | 14,330 lb · 6,500 kg | — |
| Maximum permissible mass declared | 18,585 lb · 8,430 kg | 22,046 lb · 10,000 kg | +19% 1880 (TD) |
| Wheelbase declared | 118.5 in · 3,010 mm | 116.7 in · 2,963 mm | — |
| Length declared | 171.3 in · 4,350 mm | 171.9 in · 4,365 mm | — |
| Width declared | 95.7 in · 2,430 mm | 85.0–108.7 in · 2,160–2,760 mm | differs |
| Ground clearance declared | 14.6 in · 370 mm | 27.4 in · 695 mm | +88% 1880 (TD) |
| Turning radius, braked declared | 13.5 ft · 4.10 m | — | — |
| Fuel tank declared | 331.8 qt · 314.0 L | 295.9 qt · 280.0 L | +12% 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.
John Deere 4640 (A) sources
- Source: Traktorenlexikon, “John Deere 4640”
SOMECA 1880 (TD) sources
- Source: Traktorenlexikon, “Someca 1880”
- Source: Traktorenlexikon, “Fiat 1880 DT”