7 material differences · fewer than 12
Tractor oneDeutz-Fahr D 6807 (C)1981–1982No measured PTO figureTractor twoJohn Deere 2550 (A)1983–1986No measured PTO figure
Which should you choose?
We will not advise between these two machines, because they were not built in overlapping years (1981–1982; 1983–1986). 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
7 material differences · 6 fields identical or within 5%, which is not counted as material
| Field | D 6807 (C) | 2550 (A) | Gap |
|---|---|---|---|
| Engine | |||
| Engine power, claimed claimed | 66 hp | 65.2 hp | — |
| Engine declared | KHD F4L 912 | — | — |
| Displacement declared | 3.77 L | — | — |
| Maximum torque declared | 176 lb·ft · 238 N·m | — | — |
| Transmission | |||
| Top speed declared | 15.5–18.6 mph · 25–30 km/h | 18.6 mph · 30 km/h | differs |
| Clutch declared | — | pedal-operated dry single-disc clutch as driving clutch | — |
| Hydraulics & hitch | |||
| Hydraulic centre declared | Open centre | Closed centre | differs |
| Pump flow declared | 11.1 gpm · 42.0 L/min | 13.0 gpm · 49.2 L/min | +17% 2550 (A) |
| Rear PTO speeds declared | 540 rpm / 1000 rpm | 540 rpm / 1000 rpm | — |
| Weight & dimensions | |||
| Unladen weight declared | 6,305 lb · 2,860 kg | 7,628 lb · 3,460 kg | +21% 2550 (A) |
| Maximum permissible mass declared | 11,023 lb · 5,000 kg | 10,582 lb · 4,800 kg | — |
| Wheelbase declared | 85.4 in · 2,170 mm | 89.2 in · 2,266 mm | — |
| Length declared | 148.0 in · 3,760 mm | 133.1 in · 3,380 mm | +11% D 6807 (C) |
| Width declared | 78.3 in · 1,990 mm | 79.9 in · 2,029 mm | — |
| Ground clearance declared | 18.9 in · 480 mm | 24.4 in · 620 mm | +29% 2550 (A) |
| Turning radius, braked declared | 11.9 ft · 3.62 m | 11.2 ft · 3.40 m | +6% D 6807 (C) |
| Fuel tank declared | 97.2 qt · 92 L | 95.9 qt · 90.8 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.
Deutz-Fahr D 6807 (C) sources
- Source: Traktorenlexikon, “Deutz-Fahr D 6807”
- Source: Traktorenlexikon, “Deutz D 6006”
John Deere 2550 (A) sources
- Source: Traktorenlexikon, “John Deere 2550”