10 material differences · fewer than 12
Tractor oneFiat 640 (DT)1973–1982No measured PTO figureTractor twoHürlimann D-150 S1966–1971No measured PTO figure
Which should you choose?
Read our verdict on the 640 (DT) and the D-150 S → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
10 material differences · 3 fields identical or within 5%, which is not counted as material
| Field | 640 (DT) | D-150 S | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 63.2 hp | 57.1 hp | +11% 640 (DT) |
| Engine declared | FIAT-IVECO 8045.02.200/307 | Hürlimann D-120 | differs |
| Displacement declared | 3.46 L | 4.43 L | +28% D-150 S |
| Maximum torque declared | 162 lb·ft · 219 N·m | — | — |
| Transmission | |||
| Top speed declared | 15.5 mph · 25 km/h | 15.5 mph · 25 km/h | — |
| Clutch declared | Dry Ferodo double clutch | — | — |
| Hydraulics & hitch | |||
| Pump flow declared | 5.8 gpm · 21.8 L/min | 8.5 gpm · 32.0 L/min | +47% D-150 S |
| Pressure declared | — | 2,418 psi · 167 bar | — |
| Three-point lift, at the coupling points declared | 4,960 lb · 2,250 kg | 4,079 lb · 1,850 kg | +22% 640 (DT) |
| Rear PTO speeds declared | 540 rpm | 540 rpm / 1000 rpm | differs |
| Weight & dimensions | |||
| Unladen weight declared | 5,181 lb · 2,350 kg | 5,467 lb · 2,480 kg | +6% D-150 S |
| Maximum permissible mass declared | 8,157 lb · 3,700 kg | — | — |
| Wheelbase declared | 84.3 in · 2,140 mm | 80.7 in · 2,050 mm | — |
| Length declared | 138.6 in · 3,520 mm | 131.9 in · 3,350 mm | — |
| Width declared | 67.5–93.1 in · 1,715–2,365 mm | 67.7 in · 1,720 mm | differs |
| Ground clearance declared | 20.1 in · 510 mm | 16.1 in · 410 mm | +24% 640 (DT) |
| Turning radius, braked declared | 11.2 ft · 3.42 m | 10.3 ft · 3.15 m | +9% 640 (DT) |
| Fuel tank declared | 57.1 qt · 54.0 L | 42.3 qt · 40.0 L | +35% 640 (DT) |
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 640 (DT) sources
- Source: Traktorenlexikon, “Fiat 640/640 DT”
- Source: Traktorenlexikon, “Someca 640”
Hürlimann D-150 S sources
- Source: Traktorenlexikon, “Hürlimann D 150 S”
- Source: Traktorenlexikon, “Hürlimann D 200 S”