11 material differences · fewer than 12
Tractor oneFiat 615 (DT)1965–1968No measured PTO figureTractor twoUTB U 650/6511963–1973No measured PTO figure
Which should you choose?
Read our verdict on the 615 (DT) and the U 650/651 → It is generated from the rows below by a fixed, versioned rule set, and names the figure behind every call.
Field by field
11 material differences · 4 fields identical or within 5%, which is not counted as material
| Field | 615 (DT) | U 650/651 | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 64.1 hp | 64.1 hp | — |
| Engine declared | O.M.-FIAT CO 2 D/60 Var.10 or Var.12 | UTB D-103 | differs |
| Displacement declared | 4.40 L | 4.76 L | +8% U 650/651 |
| Maximum torque declared | 188 lb·ft · 255 N·m | — | — |
| Transmission | |||
| Top speed declared | 14.9 mph · 24 km/h | 16.8 mph · 27 km/h | +13% U 650/651 |
| Clutch declared | pedal operated two stage dry FERODO double clutch | Pedal-operated dry single-plate clutch | differs |
| Hydraulics & hitch | |||
| Pump flow declared | 7.0 gpm · 26.5 L/min | 10.6 gpm · 40.0 L/min | +51% U 650/651 |
| Pressure declared | 2,988 psi · 206 bar | 1,856 psi · 128 bar | +61% 615 (DT) |
| Rear PTO speeds declared | 540 rpm | 540 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 5,997 lb · 2,720 kg | 6,724 lb · 3,050 kg | +12% U 650/651 |
| Maximum permissible mass declared | — | 9,921 lb · 4,500 kg | — |
| Wheelbase declared | 85.4 in · 2,170 mm | 95.7 in · 2,430 mm | +12% U 650/651 |
| Length declared | 140.9 in · 3,580 mm | 166.5 in · 4,230 mm | +18% U 650/651 |
| Width declared | 71.7–98.0 in · 1,820–2,490 mm | 78.7 in · 2,000 mm | differs |
| Ground clearance declared | 18.5 in · 470 mm | 18.9 in · 480 mm | — |
| Turning radius, braked declared | 12.0 ft · 3.65 m | 11.9 ft · 3.64 m | — |
| Fuel tank declared | 88.8 qt · 84.0 L | 103.6 qt · 98.0 L | +17% U 650/651 |
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 615 (DT) sources
- Source: Traktorenlexikon, “Fiat 615/615 DT”
UTB U 650/651 sources
- Source: Traktorenlexikon, “UTB U 650”